Seems OK via the browser (hit next to load a few pages). Might be the app, or the Jerboa app (0.0.52) interacting with the new server weirdly? I may try a full re-install just to be thorough.
Edit: tried a full uninstall, reinstall, and login. Same issue on my end. I suppose it may be better to try and attack this from the Jerboa side.
I use MediaTracker, with the plugin for Jellyfin to track progress. It works pretty well. Kinda barebones and I’d like to see some creature comforts added, but the dev is busy (and they try to be responsive as best they can). I like that it is fully open source and lightweight. I almost did flox, but wanted movies and games too.