Docker CLI license verification fails after update; web UI works

[McO]

After updating SongKong, my Docker command-line Fix Songs task fails with:

Unable to connect to the SongKong license server. Your Internet connection appears to be working, but the license server could not be reached...
Unable to check license, please check Internet connection

My license is valid and works when using SongKong through the web UI.

The CLI service uses songkong/songkong with:

command: ["-m", "-p", "songkong_fixsongs6.properties", "/music/inbox"]
volumes:
  - ./config4fix:/songkong:rw
  - /usik/inbox:/music/inbox:rw

Checks so far:

• From the container, HTTPS to www.jthink.net connects successfully, validates the certificate, and returns HTTP 200.
• Java is Temurin OpenJDK 21.0.12.
• Debug/user logs contain no matching license exceptions.
• Enabling Java TLS diagnostics revealed no apparent errors.
• Switching from an explicit songkong.sh entrypoint to the image’s default entrypoint with command made no difference.
• The service is configured to use DNS 1.1.1.1 .

Is there a known issue with CLI license verification, or something else I should check?