Zipped download cannot be extracted, or accepted by Local

[Windsurfer01]

I am using LinuxMint 22.2. with fully updated php, zip, Local, etc.

When downloading a site, WP-Migrate completes without any errors and downloads a zip file to my PC.

However, trying to load it into Local fails.

Checking the downloaded zip file gives these errors:

mike@MyPC>~/Downloads/WP` Local Downloads$ zip -F u3adacorumtest-20251214092946.zip --out newuu3adacorumtest-20251214092946.zip
Fix archive (-F) - assume mostly intact archive
zip warning: bad archive - missing end signature
zip warning: (If downloaded, was binary mode used? If not, the
zip warning: archive may be scrambled and not recoverable)
zip warning: Can't use -F to fix (try -FF)

zip error: Zip file structure invalid (u3adacorumtest-20251214092946.zip)

Then using the FF switch gives this:
mike@MyPC:~/Downloads/WP` Local Downloads$ zip -FF u3adacorumtest-20251214092946.zip --out newuu3adacorumtest-20251214092946.zip
Fix archive (-FF) - salvage what can
zip warning: Missing end (EOCDR) signature - either this archive
is not readable or the end is damaged
Is this a single-disk archive? (y/n): y
Assuming single-disk archive
Scanning for entries...
copying: files/wp-content/ (0 bytes)
copying: files/wp-content/themes/ (0 bytes)
etc ...

A new file newuu3adacorumtest-20251214092946.zip is created. But it is still not accepted by Local.
The Local log shows errors at the end. See the attachment.

local-lightning-verbose.log

Is there a particular type of zip program that I should use?