I haven’t run in to any freezing issues either. It sounds like it might be a network issue, do you access the service over your local network or by external DNS?
Not to hijack your post, but do you use tubearchivist-jf-plugin for getting metadata in to jellyfin? I cannot seem to get that plugin to function on my set up for some reason which makes it very hard to view the tubearchivist library on jellyfin 😢