SOLVED: Fatal playback errror on Jellyfin android app

[TheDreadPirate]

It looks like your container doesn't have full access to /config

Code:

2024-09-23T08:34:29.287954017Z [2024-09-23 18:34:29.286 +10:00] [ERR] [49] Jellyfin.Api.Middleware.ExceptionMiddleware: Error processing request. URL GET /videos/43f1b2cc-5871-8351-a1da-d7f78da265cf/hls1/main/-1.mp4.
2024-09-23T08:34:29.287973794Z System.UnauthorizedAccessException: Access to the path '/config/log/FFmpeg.DirectStream-2024-09-23_18-34-29_43f1b2cc58718351a1dad7f78da265cf_a5ac46e8.log' is denied.
2024-09-23T08:34:29.287982480Z  ---> System.IO.IOException: Permission denied

FFmpeg can't create a log file. Which also means it probably can't write the transcode files either.

Make sure the user that you are running the container as has full permissions to /config and all the sub directories.