SOLVED: Transcoding problem with LG WebOS

[Host-in-the-Shell]

Make sure that the jellyfin user is part of the render group:

Code:

sudo usermod -aG render jellyfin
sudo systemctl restart jellyfin

If hosting Jellyfin through virtualization (Docker, LXC On Proxmox, etc.) then refer to the documentation. Also, might be handy to see how you've configured your playback settings, if possible.