Enabling watermarking on the Office app breaks previews for public albums on the Memories app

[dinosmm]

Describe the bug
If 'watermarking' is enabled on the Office app's admin settings, it breaks previews in publicly shared albums on the Memories app. In this case, the Memories app shows placeholders in place of thumbnails, and also shows placeholders in place of the full photo if 'load full size' is not selected.

To Reproduce
Steps to reproduce the behavior:

1. Enable watermarking in Office admin settings
2. Create an album in Memories, create a public link for it
3. Open the album using the public link from a browser not logged in to Nextcloud
4. No previews are shown
5. Disabling watermarking and refreshing the album page immediately shows previews. Re-enabling watermarking and refreshing the album page immediately breaks previews again.

Expected behavior
Previews on shared albums showing normally.

Client details:

• OS: Windows 10.
• Firefox
• 133.0
• Laptop, but same behaviour on mobile phones

Server details

Operating system: Ubuntu 20.04

Web server: Nginx

Database: Postgresql

PHP version: 8.3

Nextcloud version: 29.0.3

Version of the richdocuments app: 8.4.9

Version of Collabora Online: 24.04.10.2

Configuration of the richdocuments app:

    "apps": {
        "richdocuments": {
            "wopi_url": "https:\/\/domain",
            "doc_format": "ooxml",
            "external_apps": "",
            "types": "prevent_group_restriction",
            "public_wopi_url": "https:\/\/domain",
            "wopi_allowlist": "",
            "installed_version": "8.4.9",
            "disable_certificate_verification": "",
            "enabled": "yes"
        }
    }
}

Logs

Nextcloud log (data/nextcloud.log)

The log is huge and not sure what part is useful, if someone could suggest what to look for in there I can post the relevant bit.

Browser log

Here is a snippet of a failed GET request for the previews when opening a shared album in Memories, with Office watermarking switched on:

GET scheme https host cloud.domain.com filename /apps/memories/api/image/preview/2943492 token 92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi albums 92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi c 83a7ea4f8e7ea378758b213a89e92016 x 340 y 340 a 1 Address 104.21.23.245:443 Status 500 VersionHTTP/2 Transferred1.50 kB (14 B size) Referrer Policyno-referrer DNS ResolutionDNS over HTTPS alt-svc h3=":443"; ma=86400 cache-control no-cache, no-store, must-revalidate cf-cache-status DYNAMIC cf-ray 8f017d7b3edb63ca-LHR content-length 14 content-security-policy default-src 'none';base-uri 'none';manifest-src 'self';frame-ancestors 'none' content-type application/json; charset=utf-8 date Wed, 11 Dec 2024 00:52:07 GMT expires Thu, 19 Nov 1981 08:52:00 GMT feature-policy autoplay 'none';camera 'none';fullscreen 'none';geolocation 'none';microphone 'none';payment 'none' nel {"success_fraction":0,"report_to":"cf-nel","max_age":604800} pragma no-cache referrer-policy no-referrer report-to {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=rAcn9875wRNGpqY8VcaYqxc3UnPI5fh0ltcStEJyqWvwRb4%2FqcPh7amLOcH8yFxwzX3vsFPFkUNd5ZnoqK1e%2Bnn4GLjyKJ5lEMlN8LVJI4Id4AE7DaKY4jBNQqsuACMLMRyVgA%3D%3D"}],"group":"cf-nel","max_age":604800} server cloudflare server-timing cfL4;desc="?proto=TCP&rtt=17661&min_rtt=15809&rtt_var=657&sent=2007&recv=334&lost=0&retrans=0&sent_bytes=2608725&recv_bytes=11611&delivery_rate=32428404&cwnd=1157&unsent_bytes=0&cid=70d9396fd9121767&ts=3161&x=0" strict-transport-security max-age=15768000; includeSubDomains; preload; x-content-type-options nosniff x-download-options noopen X-Firefox-Spdy h2 x-frame-options SAMEORIGIN x-permitted-cross-domain-policies none x-request-id 5C83IBPbdAtIDgjcwQli x-robots-tag noindex, nofollow x-robots-tag noindex,nofollow x-xss-protection 1; mode=block Accept */* Accept-Encoding gzip, deflate, br, zstd Accept-Language en-GB,en-US;q=0.7,en;q=0.3 Connection keep-alive Cookie oc_sessionPassphrase=cq3NV10txz7%2FEaY3rKvYH0ZcLBwmTEF1rmu07hDvgrA84Ag%2B%2FQ0tV7FqT55usPYNp%2B03%2BUhaBDf5V2Glzw0KGk6I0GkOjdhiGnBuAEo8PVv4q%2FIOQcw6ossnF4GSFFsT; __Host-nc_sameSiteCookielax=true; __Host-nc_sameSiteCookiestrict=true; oceyq4ovwzku=06tq86ljmah28v96it9v82f3i7 DNT 1 Host cloud.domain.com Priority u=4 Sec-Fetch-Dest empty Sec-Fetch-Mode cors Sec-Fetch-Site same-origin Sec-GPC 1 TE trailers User-Agent Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:133.0) Gecko/20100101 Firefox/133.0

[elzody]

Are you able to share with us any relevant excerpts from your nextcloud.log file, and perhaps any browser console/network errors that occur? They would help us determine what the issue could be.

[dinosmm]

Of course.
I enabled watermarking in Office, then I went to access an album via its public link. I believe this was generated in nextcloud.log at the time:

{"reqId":"3RIGkkFwfiEgXXmTMvmO","level":0,"time":"December 13, 2024 08:44:06","remoteAddr":"37.120.159.200","user":"--","app":"workflowengine","method":"GET","url":"/apps/memories/a/92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi","message":"Flow activation: rules were requested for operation Block access to a file","userAgent":"Mozilla/5.0 (X11; Linux x86_64; rv:133.0) Gecko/20100101 Firefox/133.0","version":"29.0.3.4","data":{"app":"workflowengine","level":"0"}}
{"reqId":"3RIGkkFwfiEgXXmTMvmO","level":0,"time":"December 13, 2024 08:44:06","remoteAddr":"37.120.159.200","user":"--","app":"workflowengine","method":"GET","url":"/apps/memories/a/92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi","message":"No flow configurations is going to run Block access to a file","userAgent":"Mozilla/5.0 (X11; Linux x86_64; rv:133.0) Gecko/20100101 Firefox/133.0","version":"29.0.3.4","data":{"app":"workflowengine","level":"0"}}
{"reqId":"AiYoBRoOZJuEmZdih2tv","level":0,"time":"December 13, 2024 08:44:07","remoteAddr":"37.120.159.200","user":"--","app":"PHP","method":"GET","url":"/apps/memories/api/config","message":"Creation of dynamic property OCA\\Extract\\AppInfo\\Application::$appName is deprecated at /var/www/nextcloud/apps/extract/lib/AppInfo/Application.php#35","userAgent":"Mozilla/5.0 (X11; Linux x86_64; rv:133.0) Gecko/20100101 Firefox/133.0","version":"29.0.3.4","data":{"app":"PHP"}}
{"reqId":"hw5XzAYs9Hh9waOWo2cd","level":0,"time":"December 13, 2024 08:44:08","remoteAddr":"37.120.159.200","user":"--","app":"PHP","method":"GET","url":"/apps/memories/api/days?token=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&albums=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&monthView=1&reverse=1","message":"Creation of dynamic property OCA\\Extract\\AppInfo\\Application::$appName is deprecated at /var/www/nextcloud/apps/extract/lib/AppInfo/Application.php#35","userAgent":"Mozilla/5.0 (X11; Linux x86_64; rv:133.0) Gecko/20100101 Firefox/133.0","version":"29.0.3.4","data":{"app":"PHP"}}
{"reqId":"bgLHscSRWuxKWPJ771WZ","level":0,"time":"December 13, 2024 08:44:08","remoteAddr":"37.120.159.200","user":"--","app":"PHP","method":"GET","url":"/apps/theming/favicon/memories?v=848bef65","message":"Creation of dynamic property OCA\\Extract\\AppInfo\\Application::$appName is deprecated at /var/www/nextcloud/apps/extract/lib/AppInfo/Application.php#35","userAgent":"Mozilla/5.0 (X11; Linux x86_64; rv:133.0) Gecko/20100101 Firefox/133.0","version":"29.0.3.4","data":{"app":"PHP"}}
{"reqId":"tKSW7cI1KY4RAZ11WhKO","level":0,"time":"December 13, 2024 08:44:08","remoteAddr":"37.120.159.200","user":"--","app":"PHP","method":"GET","url":"/apps/theming/icon/memories?v=848bef65","message":"Creation of dynamic property OCA\\Extract\\AppInfo\\Application::$appName is deprecated at /var/www/nextcloud/apps/extract/lib/AppInfo/Application.php#35","userAgent":"Mozilla/5.0 (X11; Linux x86_64; rv:133.0) Gecko/20100101 Firefox/133.0","version":"29.0.3.4","data":{"app":"PHP"}}
{"reqId":"p00eHnBef4N7VmArtEN2","level":0,"time":"December 13, 2024 08:44:08","remoteAddr":"37.120.159.200","user":"--","app":"PHP","method":"POST","url":"/apps/memories/api/image/multipreview?token=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&albums=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi","message":"Creation of dynamic property OCA\\Extract\\AppInfo\\Application::$appName is deprecated at /var/www/nextcloud/apps/extract/lib/AppInfo/Application.php#35","userAgent":"Mozilla/5.0 (X11; Linux x86_64; rv:133.0) Gecko/20100101 Firefox/133.0","version":"29.0.3.4","data":{"app":"PHP"}}
{"reqId":"p00eHnBef4N7VmArtEN2","level":0,"time":"December 13, 2024 08:44:08","remoteAddr":"37.120.159.200","user":"--","app":"workflowengine","method":"POST","url":"/apps/memories/api/image/multipreview?token=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&albums=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi","message":"Flow activation: rules were requested for operation Block access to a file","userAgent":"Mozilla/5.0 (X11; Linux x86_64; rv:133.0) Gecko/20100101 Firefox/133.0","version":"29.0.3.4","data":{"app":"workflowengine","level":"0"}}
{"reqId":"p00eHnBef4N7VmArtEN2","level":0,"time":"December 13, 2024 08:44:08","remoteAddr":"37.120.159.200","user":"--","app":"workflowengine","method":"POST","url":"/apps/memories/api/image/multipreview?token=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&albums=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi","message":"No flow configurations is going to run Block access to a file","userAgent":"Mozilla/5.0 (X11; Linux x86_64; rv:133.0) Gecko/20100101 Firefox/133.0","version":"29.0.3.4","data":{"app":"workflowengine","level":"0"}}
{"reqId":"p00eHnBef4N7VmArtEN2","level":0,"time":"December 13, 2024 08:44:08","remoteAddr":"37.120.159.200","user":"--","app":"workflowengine","method":"POST","url":"/apps/memories/api/image/multipreview?token=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&albums=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi","message":"Flow activation: rules were requested for operation Block access to a file","userAgent":"Mozilla/5.0 (X11; Linux x86_64; rv:133.0) Gecko/20100101 Firefox/133.0","version":"29.0.3.4","data":{"app":"workflowengine","level":"0"}}
{"reqId":"p00eHnBef4N7VmArtEN2","level":0,"time":"December 13, 2024 08:44:08","remoteAddr":"37.120.159.200","user":"--","app":"workflowengine","method":"POST","url":"/apps/memories/api/image/multipreview?token=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&albums=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi","message":"No flow configurations is going to run Block access to a file","userAgent":"Mozilla/5.0 (X11; Linux x86_64; rv:133.0) Gecko/20100101 Firefox/133.0","version":"29.0.3.4","data":{"app":"workflowengine","level":"0"}}
{"reqId":"p00eHnBef4N7VmArtEN2","level":0,"time":"December 13, 2024 08:44:08","remoteAddr":"37.120.159.200","user":"--","app":"workflowengine","method":"POST","url":"/apps/memories/api/image/multipreview?token=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&albums=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi","message":"Flow activation: rules were requested for operation Block access to a file","userAgent":"Mozilla/5.0 (X11; Linux x86_64; rv:133.0) Gecko/20100101 Firefox/133.0","version":"29.0.3.4","data":{"app":"workflowengine","level":"0"}}
{"reqId":"p00eHnBef4N7VmArtEN2","level":0,"time":"December 13, 2024 08:44:08","remoteAddr":"37.120.159.200","user":"--","app":"workflowengine","method":"POST","url":"/apps/memories/api/image/multipreview?token=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&albums=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi","message":"No flow configurations is going to run Block access to a file","userAgent":"Mozilla/5.0 (X11; Linux x86_64; rv:133.0) Gecko/20100101 Firefox/133.0","version":"29.0.3.4","data":{"app":"workflowengine","level":"0"}}
{"reqId":"p00eHnBef4N7VmArtEN2","level":0,"time":"December 13, 2024 08:44:08","remoteAddr":"37.120.159.200","user":"--","app":"workflowengine","method":"POST","url":"/apps/memories/api/image/multipreview?token=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&albums=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi","message":"Flow activation: rules were requested for operation Block access to a file","userAgent":"Mozilla/5.0 (X11; Linux x86_64; rv:133.0) Gecko/20100101 Firefox/133.0","version":"29.0.3.4","data":{"app":"workflowengine","level":"0"}}
{"reqId":"p00eHnBef4N7VmArtEN2","level":0,"time":"December 13, 2024 08:44:08","remoteAddr":"37.120.159.200","user":"--","app":"workflowengine","method":"POST","url":"/apps/memories/api/image/multipreview?token=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&albums=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi","message":"No flow configurations is going to run Block access to a file","userAgent":"Mozilla/5.0 (X11; Linux x86_64; rv:133.0) Gecko/20100101 Firefox/133.0","version":"29.0.3.4","data":{"app":"workflowengine","level":"0"}}
{"reqId":"p00eHnBef4N7VmArtEN2","level":0,"time":"December 13, 2024 08:44:08","remoteAddr":"37.120.159.200","user":"--","app":"workflowengine","method":"POST","url":"/apps/memories/api/image/multipreview?token=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&albums=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi","message":"Flow activation: rules were requested for operation Block access to a file","userAgent":"Mozilla/5.0 (X11; Linux x86_64; rv:133.0) Gecko/20100101 Firefox/133.0","version":"29.0.3.4","data":{"app":"workflowengine","level":"0"}}
{"reqId":"p00eHnBef4N7VmArtEN2","level":0,"time":"December 13, 2024 08:44:08","remoteAddr":"37.120.159.200","user":"--","app":"workflowengine","method":"POST","url":"/apps/memories/api/image/multipreview?token=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&albums=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi","message":"No flow configurations is going to run Block access to a file","userAgent":"Mozilla/5.0 (X11; Linux x86_64; rv:133.0) Gecko/20100101 Firefox/133.0","version":"29.0.3.4","data":{"app":"workflowengine","level":"0"}}
{"reqId":"p00eHnBef4N7VmArtEN2","level":0,"time":"December 13, 2024 08:44:09","remoteAddr":"37.120.159.200","user":"--","app":"workflowengine","method":"POST","url":"/apps/memories/api/image/multipreview?token=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&albums=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi","message":"Flow activation: rules were requested for operation Block access to a file","userAgent":"Mozilla/5.0 (X11; Linux x86_64; rv:133.0) Gecko/20100101 Firefox/133.0","version":"29.0.3.4","data":{"app":"workflowengine","level":"0"}}
{"reqId":"p00eHnBef4N7VmArtEN2","level":0,"time":"December 13, 2024 08:44:09","remoteAddr":"37.120.159.200","user":"--","app":"workflowengine","method":"POST","url":"/apps/memories/api/image/multipreview?token=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&albums=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi","message":"No flow configurations is going to run Block access to a file","userAgent":"Mozilla/5.0 (X11; Linux x86_64; rv:133.0) Gecko/20100101 Firefox/133.0","version":"29.0.3.4","data":{"app":"workflowengine","level":"0"}}
{"reqId":"p00eHnBef4N7VmArtEN2","level":0,"time":"December 13, 2024 08:44:09","remoteAddr":"37.120.159.200","user":"--","app":"workflowengine","method":"POST","url":"/apps/memories/api/image/multipreview?token=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&albums=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi","message":"Flow activation: rules were requested for operation Block access to a file","userAgent":"Mozilla/5.0 (X11; Linux x86_64; rv:133.0) Gecko/20100101 Firefox/133.0","version":"29.0.3.4","data":{"app":"workflowengine","level":"0"}}
{"reqId":"p00eHnBef4N7VmArtEN2","level":0,"time":"December 13, 2024 08:44:09","remoteAddr":"37.120.159.200","user":"--","app":"workflowengine","method":"POST","url":"/apps/memories/api/image/multipreview?token=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&albums=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi","message":"No flow configurations is going to run Block access to a file","userAgent":"Mozilla/5.0 (X11; Linux x86_64; rv:133.0) Gecko/20100101 Firefox/133.0","version":"29.0.3.4","data":{"app":"workflowengine","level":"0"}}
{"reqId":"p00eHnBef4N7VmArtEN2","level":0,"time":"December 13, 2024 08:44:09","remoteAddr":"37.120.159.200","user":"--","app":"workflowengine","method":"POST","url":"/apps/memories/api/image/multipreview?token=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&albums=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi","message":"Flow activation: rules were requested for operation Block access to a file","userAgent":"Mozilla/5.0 (X11; Linux x86_64; rv:133.0) Gecko/20100101 Firefox/133.0","version":"29.0.3.4","data":{"app":"workflowengine","level":"0"}}
{"reqId":"p00eHnBef4N7VmArtEN2","level":0,"time":"December 13, 2024 08:44:09","remoteAddr":"37.120.159.200","user":"--","app":"workflowengine","method":"POST","url":"/apps/memories/api/image/multipreview?token=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&albums=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi","message":"No flow configurations is going to run Block access to a file","userAgent":"Mozilla/5.0 (X11; Linux x86_64; rv:133.0) Gecko/20100101 Firefox/133.0","version":"29.0.3.4","data":{"app":"workflowengine","level":"0"}}
{"reqId":"p00eHnBef4N7VmArtEN2","level":0,"time":"December 13, 2024 08:44:09","remoteAddr":"37.120.159.200","user":"--","app":"workflowengine","method":"POST","url":"/apps/memories/api/image/multipreview?token=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&albums=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi","message":"Flow activation: rules were requested for operation Block access to a file","userAgent":"Mozilla/5.0 (X11; Linux x86_64; rv:133.0) Gecko/20100101 Firefox/133.0","version":"29.0.3.4","data":{"app":"workflowengine","level":"0"}}
{"reqId":"p00eHnBef4N7VmArtEN2","level":0,"time":"December 13, 2024 08:44:09","remoteAddr":"37.120.159.200","user":"--","app":"workflowengine","method":"POST","url":"/apps/memories/api/image/multipreview?token=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&albums=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi","message":"No flow configurations is going to run Block access to a file","userAgent":"Mozilla/5.0 (X11; Linux x86_64; rv:133.0) Gecko/20100101 Firefox/133.0","version":"29.0.3.4","data":{"app":"workflowengine","level":"0"}}
{"reqId":"p00eHnBef4N7VmArtEN2","level":0,"time":"December 13, 2024 08:44:09","remoteAddr":"37.120.159.200","user":"--","app":"workflowengine","method":"POST","url":"/apps/memories/api/image/multipreview?token=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&albums=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi","message":"Flow activation: rules were requested for operation Block access to a file","userAgent":"Mozilla/5.0 (X11; Linux x86_64; rv:133.0) Gecko/20100101 Firefox/133.0","version":"29.0.3.4","data":{"app":"workflowengine","level":"0"}}
{"reqId":"p00eHnBef4N7VmArtEN2","level":0,"time":"December 13, 2024 08:44:09","remoteAddr":"37.120.159.200","user":"--","app":"workflowengine","method":"POST","url":"/apps/memories/api/image/multipreview?token=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&albums=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi","message":"No flow configurations is going to run Block access to a file","userAgent":"Mozilla/5.0 (X11; Linux x86_64; rv:133.0) Gecko/20100101 Firefox/133.0","version":"29.0.3.4","data":{"app":"workflowengine","level":"0"}}
{"reqId":"2BNermEgR2vSFujfJrmY","level":0,"time":"December 13, 2024 08:44:09","remoteAddr":"37.120.159.200","user":"--","app":"PHP","method":"GET","url":"/apps/memories/api/image/preview/2943456?token=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&albums=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&c=44fcd416c165e745ff88cd2d77039975&x=340&y=340&a=1","message":"Creation of dynamic property OCA\\Extract\\AppInfo\\Application::$appName is deprecated at /var/www/nextcloud/apps/extract/lib/AppInfo/Application.php#35","userAgent":"Mozilla/5.0 (X11; Linux x86_64; rv:133.0) Gecko/20100101 Firefox/133.0","version":"29.0.3.4","data":{"app":"PHP"}}
{"reqId":"q4bYOJGAlk8I6cBkpmg5","level":0,"time":"December 13, 2024 08:44:09","remoteAddr":"37.120.159.200","user":"--","app":"PHP","method":"GET","url":"/apps/memories/api/image/preview/2943492?token=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&albums=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&c=83a7ea4f8e7ea378758b213a89e92016&x=340&y=340&a=1","message":"Creation of dynamic property OCA\\Extract\\AppInfo\\Application::$appName is deprecated at /var/www/nextcloud/apps/extract/lib/AppInfo/Application.php#35","userAgent":"Mozilla/5.0 (X11; Linux x86_64; rv:133.0) Gecko/20100101 Firefox/133.0","version":"29.0.3.4","data":{"app":"PHP"}}
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Here is the list of browser console messages:

Content-Security-Policy: Ignoring “blob:” within script-src-elem: ‘strict-dynamic’ specified [92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi](https://cloud.mavridis.uk/apps/memories/a/92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi)
Layout was forced before the page was fully loaded. If stylesheets are not yet loaded this may cause a flash of unstyled content. [node.js:417:1](resource://devtools/server/actors/inspector/node.js)
Service Worker is not enabled on this browser. [App.vue:315](webpack:///memories/App.vue)
session heartbeat polling started [session-heartbeat.js:103:9](webpack:///nextcloud/core/src/session-heartbeat.js)
[DEBUG] Files_PDFViewer: Initializing for public page 

Object { app: "Files_PDFViewer", level: 0, isPublicPage: false, canDownload: true, isSecureViewerAvailable: false }
[ConsoleLogger.js:65:18](webpack:///files_pdfviewer/node_modules/@nextcloud/logger/dist/ConsoleLogger.js)
[ERROR] Files_PDFViewer: But this does not appear to be a public page 

Object { app: "Files_PDFViewer", level: 0 }
[ConsoleLogger.js:74:18](webpack:///files_pdfviewer/node_modules/@nextcloud/logger/dist/ConsoleLogger.js)
XHRGET[https://.domain.com/apps/memories/api/image/preview/2943492?token=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&albums=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&c=83a7ea4f8e7ea378758b213a89e92016&x=340&y=340&a=1](https://cloud.mavridis.uk/apps/memories/api/image/preview/2943492?token=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&albums=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&c=83a7ea4f8e7ea378758b213a89e92016&x=340&y=340&a=1)[HTTP/2 500 456ms] 
XHRGET[https://.domain.com/apps/memories/api/image/preview/2943507?token=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&albums=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&c=f90c66ef3db52e5a4afc0a3379bc31fd&x=340&y=340&a=1](https://cloud.mavridis.uk/apps/memories/api/image/preview/2943507?token=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&albums=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&c=f90c66ef3db52e5a4afc0a3379bc31fd&x=340&y=340&a=1)[HTTP/2 500 455ms] 
XHRGET[https://.domain.com/apps/memories/api/image/preview/2943456?token=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&albums=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&c=44fcd416c165e745ff88cd2d77039975&x=340&y=340&a=1](https://cloud.mavridis.uk/apps/memories/api/image/preview/2943456?token=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&albums=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&c=44fcd416c165e745ff88cd2d77039975&x=340&y=340&a=1)[HTTP/2 500 522ms] 
XHRGET[https://.domain.com/apps/memories/api/image/preview/2943485?token=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&albums=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&c=7f81f8a66d15d2c99ca8d6f3944d545e&x=340&y=340&a=1](https://cloud.mavridis.uk/apps/memories/api/image/preview/2943485?token=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&albums=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&c=7f81f8a66d15d2c99ca8d6f3944d545e&x=340&y=340&a=1)[HTTP/2 500 532ms] 
XHRGET[https://.domain.com/apps/memories/api/image/preview/2943449?token=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&albums=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&c=84273a078ec49706380b1f3a8e2403cf&x=340&y=340&a=1](https://cloud.mavridis.uk/apps/memories/api/image/preview/2943449?token=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&albums=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&c=84273a078ec49706380b1f3a8e2403cf&x=340&y=340&a=1)[HTTP/2 500 453ms] 
XHRGET[https://.domain.com/apps/memories/api/image/preview/2943476?token=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&albums=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&c=58f1cea5ea77b083c730658e1fbd6a25&x=340&y=340&a=1](https://cloud.mavridis.uk/apps/memories/api/image/preview/2943476?token=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&albums=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&c=58f1cea5ea77b083c730658e1fbd6a25&x=340&y=340&a=1)[HTTP/2 500 684ms] 
XHRGET[https://.domain.com/apps/memories/api/image/preview/2943512?token=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&albums=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&c=c25fb6a15e67db8fa56fd74d4b72080b&x=340&y=340&a=1](https://cloud.mavridis.uk/apps/memories/api/image/preview/2943512?token=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&albums=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&c=c25fb6a15e67db8fa56fd74d4b72080b&x=340&y=340&a=1)[HTTP/2 500 552ms] 
XHRGET[https://.domain.com/apps/memories/api/image/preview/2943463?token=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&albums=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&c=5d1bece3d7ebdf5ba8665d0db63e44db&x=340&y=340&a=1](https://cloud.mavridis.uk/apps/memories/api/image/preview/2943463?token=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&albums=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&c=5d1bece3d7ebdf5ba8665d0db63e44db&x=340&y=340&a=1)[HTTP/2 500 637ms] 
XHRGET[https://.domain.com/apps/memories/api/image/preview/2943520?token=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&albums=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&c=12c44834b6ab1d2a9c23bec305c01e6c&x=340&y=340&a=1](https://cloud.mavridis.uk/apps/memories/api/image/preview/2943520?token=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&albums=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&c=12c44834b6ab1d2a9c23bec305c01e6c&x=340&y=340&a=1)[HTTP/2 500 655ms] 
XHRGET[https://.domain.com/apps/memories/api/image/preview/2943499?token=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&albums=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&c=6f8680a91311e7a9250a5b4bd25e30ee&x=340&y=340&a=1](https://cloud.mavridis.uk/apps/memories/api/image/preview/2943499?token=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&albums=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&c=6f8680a91311e7a9250a5b4bd25e30ee&x=340&y=340&a=1)[HTTP/2 500 736ms] 
Failed to load XImg Error fetching single preview: {"message":""} [XImg.vue:95](webpack:///memories/components/frame/XImg.vue)
Failed to load XImg Error fetching single preview: {"message":""} [XImg.vue:95](webpack:///memories/components/frame/XImg.vue)
Failed to load XImg Error fetching single preview: {"message":""} [XImg.vue:95](webpack:///memories/components/frame/XImg.vue)
Failed to load XImg Error fetching single preview: {"message":""} [XImg.vue:95](webpack:///memories/components/frame/XImg.vue)
Failed to load XImg Error fetching single preview: {"message":""} [XImg.vue:95](webpack:///memories/components/frame/XImg.vue)
Failed to load XImg Error fetching single preview: {"message":""} [XImg.vue:95](webpack:///memories/components/frame/XImg.vue)
Failed to load XImg Error fetching single preview: {"message":""} [XImg.vue:95](webpack:///memories/components/frame/XImg.vue)
Failed to load XImg Error fetching single preview: {"message":""} [XImg.vue:95](webpack:///memories/components/frame/XImg.vue)
Failed to load XImg Error fetching single preview: {"message":""} [XImg.vue:95](webpack:///memories/components/frame/XImg.vue)
Failed to load XImg Error fetching single preview: {"message":""} [XImg.vue:95](webpack:///memories/components/frame/XImg.vue)
Failed to load XImg Error fetching single preview: {"message":""} [XImg.vue:95](webpack:///memories/components/frame/XImg.vue)
Failed to load XImg Error fetching single preview: {"message":""} [XImg.vue:95](webpack:///memories/components/frame/XImg.vue)
Failed to load XImg Error fetching single preview: {"message":""} [XImg.vue:95](webpack:///memories/components/frame/XImg.vue)
Failed to load XImg Error fetching single preview: {"message":""} [XImg.vue:95](webpack:///memories/components/frame/XImg.vue)
Failed to load XImg Error fetching single preview: {"message":""} [XImg.vue:95](webpack:///memories/components/frame/XImg.vue)
Failed to load XImg Error fetching single preview: {"message":""} [XImg.vue:95](webpack:///memories/components/frame/XImg.vue)
Failed to load XImg Error fetching single preview: {"message":""} [XImg.vue:95](webpack:///memories/components/frame/XImg.vue)
Failed to load XImg Error fetching single preview: {"message":""} [XImg.vue:95](webpack:///memories/components/frame/XImg.vue)
Failed to load XImg Error fetching single preview: {"message":""} [XImg.vue:95](webpack:///memories/components/frame/XImg.vue)
Failed to load XImg Error fetching single preview: {"message":""} [XImg.vue:95](webpack:///memories/components/frame/XImg.vue)
​

And if I expand one of the error 500s:

<!DOCTYPE html>
<html>
<head>
	
	<title></title>
	<meta name="generator" content="LibreOffice 7.3.7.2 (Linux)"/>
	<style type="text/css">
		@page { size: 21cm 29.7cm; margin: 2cm }
		td p { orphans: 0; widows: 0; background: transparent }
		p { line-height: 115%; margin-bottom: 0.25cm; background: transparent }
		a:link { color: #000080; text-decoration: underline }
	</style>
</head>
<body lang="en-GB" link="#000080" vlink="#800000" dir="ltr"><p style="line-height: 100%; margin-bottom: 0cm">
[ERROR] Files_PDFViewer: But this does not appear to be a public page
</p>
<div id="server0.conn0.process25//obj227" dir="ltr"><p style="line-height: 100%; margin-bottom: 0cm">
	<br/>

	</p>
</div>
<div id="Section1" dir="ltr"><p style="line-height: 100%; margin-bottom: 0cm">
	Object { app: &quot;Files_PDFViewer&quot;, level: 0 }</p>
</div>
<p style="line-height: 100%; margin-bottom: 0cm"><a href="webpack:///files_pdfviewer/node_modules/@nextcloud/logger/dist/ConsoleLogger.js">ConsoleLogger.js:74:18</a></p>
<p style="line-height: 100%; margin-bottom: 0cm">&nbsp;&nbsp;&nbsp;&nbsp;value
ConsoleLogger.js:74</p>
<p style="line-height: 100%; margin-bottom: 0cm">&nbsp;&nbsp;&nbsp;&nbsp;value
ConsoleLogger.js:100</p>
<p style="line-height: 100%; margin-bottom: 0cm">&nbsp;&nbsp;&nbsp;&nbsp;&lt;anonymous&gt;
public.js:93</p>
<p style="line-height: 100%; margin-bottom: 0cm">&nbsp;&nbsp;&nbsp;&nbsp;(Async:
EventListener.handleEvent)<br/>
&nbsp;&nbsp;&nbsp;&nbsp;&lt;anonymous&gt;
public.js:30</p>
<p style="line-height: 100%; margin-bottom: 0cm">&nbsp;&nbsp;&nbsp;&nbsp;&lt;anonymous&gt;
public.js:95</p>
<p style="line-height: 100%; margin-bottom: 0cm">&nbsp;&nbsp;&nbsp;&nbsp;&lt;anonymous&gt;
public.js:95</p>
<p style="line-height: 100%; margin-bottom: 0.5cm">XHRGET<a href="https://cloud.mavridis.uk/apps/memories/api/image/preview/2943492?token=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&amp;albums=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&amp;c=83a7ea4f8e7ea378758b213a89e92016&amp;x=340&amp;y=340&amp;a=1">https://domain.com/apps/memories/api/image/preview/2943492?token=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&amp;albums=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&amp;c=83a7ea4f8e7ea378758b213a89e92016&amp;x=340&amp;y=340&amp;a=1</a>[HTTP/2
500 456ms] 
</p>
<ul>
	<li><p></p>
</ul>
<div id="headers-panel" dir="ltr">
	
  |  
-- | --
GET | https://domain.com/apps/memories/api/image/preview/2943492?token=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&albums=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&c=83a7ea4f8e7ea378758b213a89e92016&x=340&y=340&a=1


<p style="line-height: 100%; margin-bottom: 0cm"><br/>

</p>
</body>
</html>�[ERROR] Files_PDFViewer: But this does not appear to be a public page 

Object { app: "Files_PDFViewer", level: 0 }
[ConsoleLogger.js:74:18](webpack:///files_pdfviewer/node_modules/@nextcloud/logger/dist/ConsoleLogger.js)
    value ConsoleLogger.js:74
    value ConsoleLogger.js:100
    <anonymous> public.js:93
    (Async: EventListener.handleEvent)
    <anonymous> public.js:30
    <anonymous> public.js:95
    <anonymous> public.js:95
XHRGET[https://domain.com/apps/memories/api/image/preview/2943492?token=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&albums=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&c=83a7ea4f8e7ea378758b213a89e92016&x=340&y=340&a=1](https://cloud.mavridis.uk/apps/memories/api/image/preview/2943492?token=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&albums=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&c=83a7ea4f8e7ea378758b213a89e92016&x=340&y=340&a=1)[HTTP/2 500 456ms] 
    • 


GET
https://domain.com/apps/memories/api/image/preview/2943492?token=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&albums=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&c=83a7ea4f8e7ea378758b213a89e92016&x=340&y=340&a=1
Status
500
VersionHTTP/2
Transferred1.50 kB (14 B size)
Referrer Policyno-referrer
DNS ResolutionDNS over HTTPS
    • 


alt-svc
h3=":443"; ma=86400
cache-control
no-cache, no-store, must-revalidate

cf-cache-status
DYNAMIC
cf-ray
8f14b0f66c7a8f40-FRA
content-length
14
content-security-policy
default-src 'none';base-uri 'none';manifest-src 'self';frame-ancestors 'none'
content-type
application/json; charset=utf-8
date
Fri, 13 Dec 2024 08:47:45 GMT
expires
Thu, 19 Nov 1981 08:52:00 GMT
feature-policy
autoplay 'none';camera 'none';fullscreen 'none';geolocation 'none';microphone 'none';payment 'none'
nel
{"success_fraction":0,"report_to":"cf-nel","max_age":604800}
pragma
no-cache
referrer-policy
no-referrer
report-to
{"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=ZYxubH1m89KT9dK%2BkHj2JiVaugdcS%2FkQUxZd4sDMaZ15tm07381y%2FXeJzcMEp19wYTHHkv7NeSBhQsOaCwgJm88BpTHsUxxQguMz%2Fa1NepjQfSon%2Fk7Dq%2BUPBKrgEtB2ECbWbw%3D%3D"}],"group":"cf-nel","max_age":604800}
server
cloudflare
server-timing
cfL4;desc="?proto=TCP&rtt=19049&min_rtt=18991&rtt_var=35&sent=40&recv=41&lost=0&retrans=0&sent_bytes=24796&recv_bytes=6196&delivery_rate=712563&cwnd=233&unsent_bytes=0&cid=c605fc12d9565ba0&ts=3236&x=0"
strict-transport-security
max-age=15768000; includeSubDomains; preload;
x-content-type-options
nosniff
x-download-options
noopen
X-Firefox-Spdy
h2
x-frame-options
SAMEORIGIN
x-permitted-cross-domain-policies
none
x-request-id
m3lhvZ4FOsh07pVedcSZ
x-robots-tag
noindex, nofollow
x-robots-tag
noindex,nofollow
x-xss-protection
1; mode=block


Accept
*/*

Accept-Encoding
gzip, deflate, br, zstd
Accept-Language
en-GB,en-US;q=0.7,en;q=0.3
Connection
keep-alive
Cookie
oc_sessionPassphrase=ecHcsqR4lzBqJT050XwvW6Uyx3UVP%2B6kIX32b6NpDfDwKP7rLm0iiESWDPwcDXuZp7RCbJgtV5YL2sxbsTOLcMh4078k1hYDSlRc7iuVvODx8gYt0nzptlj%2BP62Gu2FO; __Host-nc_sameSiteCookielax=true; __Host-nc_sameSiteCookiestrict=true; oceyq4ovwzku=kpfqoe2mqtd8sujesagu88qvfs
DNT
1
Host
domain.com
Priority
u=4
Sec-Fetch-Dest
empty
Sec-Fetch-Mode
cors
Sec-Fetch-Site
same-origin
Sec-GPC
1
TE
trailers
User-Agent Mozilla/5.0 (X11; Linux x86_64; rv:133.0) Gecko/20100101 Firefox/133.0

[juliusknorr]

The logs only show debug level messages, but your browser seems to fail with a 500 error on the memories endpoint:

https://domain.com/apps/memories/api/image/preview/2943492?token=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&albums=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&c=83a7ea4f8e7ea378758b213a89e92016&x=340&y=340&a=1
Status
500

Can you check if you find any specific message for those endpoints in the logs, e.g. with this filter:

grep memories/api/image/preview data/nextcloud.log

[dinosmm]

Here is the output of your grep:

{"reqId":"e1JdD0i0dfFqoElLs5pg","level":0,"time":"December 13, 2024 10:33:42","remoteAddr":"37.120.159.200","user":"--","app":"PHP","method":"GET","url":"/apps/memories/api/image/preview/2943507?token=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&albums=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&c=f90c66ef3db52e5a4afc0a3379bc31fd&x=340&y=340&a=1","message":"Creation of dynamic property OCA\\Extract\\AppInfo\\Application::$appName is deprecated at /var/www/nextcloud/apps/extract/lib/AppInfo/Application.php#35","userAgent":"Mozilla/5.0 (X11; Linux x86_64; rv:133.0) Gecko/20100101 Firefox/133.0","version":"29.0.3.4","data":{"app":"PHP"}}
{"reqId":"3xW1gdwerHcgvkhMy6IY","level":0,"time":"December 13, 2024 10:33:42","remoteAddr":"37.120.159.200","user":"--","app":"PHP","method":"GET","url":"/apps/memories/api/image/preview/2943492?token=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&albums=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&c=83a7ea4f8e7ea378758b213a89e92016&x=340&y=340&a=1","message":"Creation of dynamic property OCA\\Extract\\AppInfo\\Application::$appName is deprecated at /var/www/nextcloud/apps/extract/lib/AppInfo/Application.php#35","userAgent":"Mozilla/5.0 (X11; Linux x86_64; rv:133.0) Gecko/20100101 Firefox/133.0","version":"29.0.3.4","data":{"app":"PHP"}}
{"reqId":"3xW1gdwerHcgvkhMy6IY","level":0,"time":"December 13, 2024 10:33:42","remoteAddr":"37.120.159.200","user":"--","app":"workflowengine","method":"GET","url":"/apps/memories/api/image/preview/2943492?token=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&albums=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&c=83a7ea4f8e7ea378758b213a89e92016&x=340&y=340&a=1","message":"Flow activation: rules were requested for operation Block access to a file","userAgent":"Mozilla/5.0 (X11; Linux x86_64; rv:133.0) Gecko/20100101 Firefox/133.0","version":"29.0.3.4","data":{"app":"workflowengine","level":"0"}}
{"reqId":"3xW1gdwerHcgvkhMy6IY","level":0,"time":"December 13, 2024 10:33:42","remoteAddr":"37.120.159.200","user":"--","app":"workflowengine","method":"GET","url":"/apps/memories/api/image/preview/2943492?token=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&albums=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&c=83a7ea4f8e7ea378758b213a89e92016&x=340&y=340&a=1","message":"No flow configurations is going to run Block access to a file","userAgent":"Mozilla/5.0 (X11; Linux x86_64; rv:133.0) Gecko/20100101 Firefox/133.0","version":"29.0.3.4","data":{"app":"workflowengine","level":"0"}}
{"reqId":"e1JdD0i0dfFqoElLs5pg","level":0,"time":"December 13, 2024 10:33:42","remoteAddr":"37.120.159.200","user":"--","app":"workflowengine","method":"GET","url":"/apps/memories/api/image/preview/2943507?token=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&albums=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&c=f90c66ef3db52e5a4afc0a3379bc31fd&x=340&y=340&a=1","message":"Flow activation: rules were requested for operation Block access to a file","userAgent":"Mozilla/5.0 (X11; Linux x86_64; rv:133.0) Gecko/20100101 Firefox/133.0","version":"29.0.3.4","data":{"app":"workflowengine","level":"0"}}
{"reqId":"e1JdD0i0dfFqoElLs5pg","level":0,"time":"December 13, 2024 10:33:42","remoteAddr":"37.120.159.200","user":"--","app":"workflowengine","method":"GET","url":"/apps/memories/api/image/preview/2943507?token=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&albums=92q5cXDKEqAfG3xTjsOUpOWI3AXmfywi&c=f90c66ef3db52e5a4afc0a3379bc31fd&x=340&y=340&a=1","message":"No flow configurations is going to run Block access to a file","userAgent":"Mozilla/5.0 (X11; Linux x86_64; rv:133.0) Gecko/20100101 Firefox/133.0","version":"29.0.3.4","data":{"app":"workflowengine","level":"0"}}
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I have narrowed this down further. The previews break only if "Show watermark for read only shares" or "Show watermark for all shares" is selected in the Watermark section in Office admin settings.

EDIT: The tickbox options under 'Link shares' appear to have no effect on this issue, whether ticked or unticked they don't affect whether previews are broken or not. The only culprit seems to be the "Show watermark for read only shares" (and the "Show watermark for all shares").

[juliusknorr]

Thanks, doesn't hint a log message but it might be influenced by

richdocuments/lib/Listener/BeforeFetchPreviewListener.php

Line 59 in cb664d6

if ($this->permissionManager->shouldWatermark($event->getNode(), $userId, $share)) {

I haven't checked if the memories app might be silencing that exception, but we probably should harden the code a bit and check what cases we want to block previews (maybe limit to office formats there).

[droogi]

is it correlated to #4103?

[dinosmm]

is it correlated to #4103?

It is possible, but that issue mentions previews not showing at all on Memories, while in my issue, previews are only broken on publicly shared albums. Also #4103 mentions map tiles, but maps works fine for me when watermarking on the Office app is enabled.

[aswin154]

I have noticed this issue before when sharing individual files, but never thought office is causing this.

One thing I would like to add is even when you view the shared file without using memories (i.e. apps/memories/ is removed from the url) the previews are not loaded. Instead the full resolution image is downloaded. So the issue is not with memories I guess.