SOLVED: One MP3 Will Not Play

[TheDreadPirate]

99% certain there is an issue with the file itself.

What is the output of ffprobe on that file?

You could try remuxing the file. This would fix any issues with the container. If the problem is with the audio itself, your last resort would be to re-encode the file.

You would open a bash shell into the container if you don't have ffmpeg/ffprobe installed on the host.

Code:

docker exec -it jellyfin bash
/usr/lib/jellyfin-ffmpeg/ffprobe /path/to/music/file.mp3   # or whatever extension
/usr/lib/jellyfin-ffmpeg/ffmpeg -i "/path/to/music/file.mp3" -map 0 -codec copy newFile.mp3  # change the extension, if different