I wanted to get that achievement with Amenmesse where I have to confederate 5 factions. But every time I try to confederate a faction, the game freezes for a second and then I'm back at my desktop. No error message or anything else, its just crashing. I tried verifying my files on Steam, I removed all mods physically from the workshop folder (so none of them could be active) but sadly that didn't help.

Weirdly enough it doesn't seem to crash with every faction. I can't confederate Pi-Ramesses but if I try Abedju with an Ultimatum, then it suddenly works.

Here is a Savegame where this issue keeps happening for me.