Okay, FUSION is the connected textures mod, which I still have enabled for now, but you're free to uninstall it if you want since it's optional and client-side and seems to do nothing. But CONNECTIVITY is apparently a connection-related mod. And disabling CONNECTIVITY, which I did at random because I thought it was the textures mod, stopped my client from crashing every fucking time I disconnected.
If you want to guinea pig for me I'd advise disabling Connectivity (you can do this in Prism Launcher's settings for the instance) instead of deleting it altogether, cos I have no idea yet why it's busted anyway, or if deleting it will break something.
This does make me wonder if this will finally fix the null logins we all seem to be getting. But it is lunchtime for me and I don't feel like signing in and out of the server a bunch of times.
babu baba baby