SOLVED: "Startup probe failed" failed after updating TrueNAS & Jellyfin

[bitmap]

Those are Docker assigned IP addresses for your bridge or other network (i.e., docker networking, not a different physical or external connection). The health check on the container itself is failing, that's a probe of whether Jellyfin is up (can it access the home page) and the answer is no. So this log doesn't have enough info, you'll probably need to find the docker logs.