I have been using the same docker container script for a long time now without issue across several versions. The exception was the last support issue I posted where you made a copy/paste error in the release.

If I set the PUID/PGID to a valid user on my host with r/w access (the same that several other containers use without issue) then I get some different error messages:

With both configs, the container stops unexpectedly.
Environment Variables:

The PUSER/PGROUP variables appear to be undocumented.
Note: settle_down_time is set extremely low for testing that I was doing.
I also noticed a possible change to the Execution Command: /opt/bin/run-as-user which may or may not have been in the last version.
I also tried setting the PUID/PGID to some random values and received various permissions issues. Received a licensing issue after changing some file permissions within the container.