Sounds like you are using the 10.9 unstable build and not the stable 10.8.13 container. Is that intentional? A lot of plugins aren't working for 10.9 yet.
Jellyfin 10.10.3 (Docker)
Ubuntu 24.04 LTS
Intel i3 12100
Intel Arc A380
OS drive - SK Hynix P41 1TB
Storage
3x WD Red Pro 6TB CMR in RAIDZ1 (JF Library)