Not sure how much help you might get here. Your use case is pretty atypical. I think Jellycon produces logs. Not sure where. Maybe those will give us some info we can work with?
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)