When I joined a server installed AstralSorcery, some graphic issues occured, just like this:


Then game crashed, here are two crash-reports:
https://paste.ubuntu.com/p/5Gb4C5PqfN/
https://paste.ubuntu.com/p/R54bmwtrmy/

Other players didn't report these issues.

Removed Phosphor from client's mods folder, but my game still crashed.
Phosphor is also installed on server-side, should I remove it too?

Yes, both single player and multiplayer.

Gui are client side, no. Something is conflicting and causing things that shouldnt be null, to be null.

Does it happen in single player?

Unless you are accessing an observatory, I don't see why it should be called at all.

Would recommend test single player and removing mods until it stops happening, perhaps starting with AnotherCommonBugFix mod, as I am not familiar with it, but I see it does a lot of changes to various GUI calls.

Does your mod list perfectly match people not having the issue? If not, that may also be a place to check.

Yea, this in the observatory gui.
If you're not actively opening any gui as you stated and just logged onto the server, i suppose some mod is opening gui's seeingly at random.
Try binary search on which mod it could be. This isn't AS' fault.

Does it happen without phosphor?

I got a hs_err_pid.log file. Maybe it's useful.
https://paste.ubuntu.com/p/CHXDxQbk3Z/

That means java suffered a fatal exception. Unrelated to this mod.