Installed using script in Debian LXC - many of the films are not playing (seems to lo

[Lateral]

This is the script I used on a fresh LXC (privileged, with iGPU N100 pass through):

curl https://repo.jellyfin.org/install-debuntu.sh | sudo bash

I followed a tutorial on YouTube for it, but for some reason a lot of my library is not playing. How do I troubleshoot my way through this?