Chronograf 1.10.9 - with multiple connections defined, after opening Log viewer, current connection resets to default

[karel-rehor]

Steps to reproduce:

1. Create two or more connections to backend influx databases, e.g. v1 and v3 with v1 as the defalut
2. Activate the non-default connection, e.g. v3
3. Shutdown the v1 database temporarily.
4. Open Influxdb Admin - databases are listed
5. Open logs - wait a few minutes for search
6. Abandon search by returning to Configuration - see that the current connection is now set to the default, e.g. v1
7. Open Influxdb Admin again - error message appears "Unable to administer InfluxDB. Failed to load databases"

screencast

Screencast.from.2026-01-26.10-45-20.webm

Expected behavior:
When selecting a connection for working with other controls in Chronograf, that connection should remain selected until the user switches to a different connection.

Actual behavior:
After viewing Logs, the current connection is switched to the default.

Environment info:

• Chronograf version: Chronograf 1.10.9 (git: 48e3546) - n.b. also noted when testing newest release.
• OS: Ubuntu 24.04
• Browser: Opera 126.0.5750.59
• InfluxDB Versions:
  • Influxdb1 OSS - docker - started then shutdown as noted in reproduction steps
  • Influxdb3 Core - docker

Config:
Copy any non-default config values here or attach the full config as a gist or file.

Startup command:

$ ./chronograf --influxdb-v3-support-enabled

Logs:
Include a snippet of errors in the log.

...
INFO[1238] Response: OK                                  component=server method=GET remote_addr="[::1]:57328" response_time=2.405617ms status=200
INFO[1238] Response: OK                                  component=server method=POST remote_addr="[::1]:57328" response_time="898.451µs" status=200
INFO[1238] Response: OK                                  component=server method=POST remote_addr="[::1]:57328" response_time="955.608µs" status=200
INFO[1238] Response: OK                                  component=server method=POST remote_addr="[::1]:57328" response_time="810.896µs" status=200
INFO[1238] Response: OK                                  component=server method=POST remote_addr="[::1]:57328" response_time=3.561042ms status=200
INFO[1238] Response: OK                                  component=server method=POST remote_addr="[::1]:57334" response_time=4.550032ms status=200
INFO[1238] Response: OK                                  component=server method=GET remote_addr="[::1]:57334" response_time="724.383µs" status=200
INFO[1238] Response: OK                                  component=server method=POST remote_addr="[::1]:57334" response_time=1.740706ms status=200
INFO[1241] Failed to retrieve database version           error="Get \"http://localhost:8086/ping\": dial tcp 127.0.0.1:8086: connect: connection refused" url="http://localhost:8086"
INFO[1241] Response: OK                                  component=server method=GET remote_addr="[::1]:57334" response_time=2.546572ms status=200
INFO[1241] Response: OK                                  component=server method=GET remote_addr="[::1]:57334" response_time="733.801µs" status=200
INFO[1241] Response: OK                                  component=server method=GET remote_addr="[::1]:57328" response_time="718.732µs" status=200
INFO[1244] Response: OK                                  component=server method=GET remote_addr="[::1]:57328" response_time="34.776µs" status=200
ERRO[1245] Error message Error contacting source         component=server http_status =400
INFO[1245] Response: Bad Request                         component=server method=GET remote_addr="[::1]:57328" response_time="491.716µs" status=400
ERRO[1245] Error message Post "http://localhost:8086/query?db=&epoch=ms&q=SHOW+DATABASES&rp=": dial tcp 127.0.0.1:8086: connect: connection refused  component=server http_status =400
INFO[1245] Response: Bad Request                         component=server method=GET remote_addr="[::1]:57334" response_time="699.266µs" status=400
INFO[1254] Response: OK                                  component=server method=GET remote_addr="[::1]:33300" response_time="34.314µs" status=200
INFO[1264] Response: OK                                  component=server method=GET remote_addr="[::1]:48382" response_time="67.387µs" status=200
...