Unable to get tone mapping working

[kickingknowledge]

This hasn't fixed it, unfortunately. I checked the render group:

Code:

$getent group render

Which returned:

Code:

render:x:106:

I updated the docker-compose (as a Portainer stack) accordingly:

 

Code:

jellyfin:
      image: lscr.io/linuxserver/jellyfin
      container_name: jellyfin
      group_add:
        - 106 #render
      environment:
        - PUID=1000
        - PGID=100
        - TZ=Europe/Berlin
      devices:
        - /dev/dri/renderD128:/dev/dri/renderD128
        - /dev/dri/card0:/dev/dri/card0
      volumes:
        - /srv/dev-disk-by-uuid-xxx/config0/jellyfin:/config
        - /srv/dev-disk-by-uuid-yyy/config0/jellyfin/cache:/cache
        - /srv/dev-disk-by-uuid-zzz/media:/media
      ports:
        - 8096:8096
        - 8920:8920
        - 7359:7359/udp
        - 1900:1900/udp
      restart: unless-stopped

I do notice the linuxserver image, not the official jellyfin image. Could this be a problem?

Here's the most recent logs and ffmpeg logs:
https://pastebin.com/pMqkLF7K
https://pastebin.com/7GvUwNPC