Jellyfin not playing

[pcm]

The server will refuse to playback mp3 files. Haven't tried it with anything else.

Here's what you can do that will help us troubleshoot your problem.

1. SSH into your jellyfin server host.
2. Run

Code:

cd /var/log/jellyfin && tail -f $(ls -1tr | tail -1)

4. Hit the enter key a few times so that there will a gap from the last log line
5. Try playing an mp3 file
6. If you then switch over to terminal on your server host running the command from step-3, you should see relevant log informing you of precisely what went wrong.
7. Copy and paste that log
8. Repeat steps 1-7 for a video/movie/tvshow and paste those logs here if you encounter an error while playing them.

A sudo update/upgrade solves the issue.

Will enabling auto-updates create any issues?

This is hard for anyone to say without looking at the relevant logs.