Hey there, I encountered this issue too yesterday after the latest patch. It is indeed linked to certain mods, the biggest 2 being Improved UI and Mod Fixer. I don't use either of these, but for me it was the Customizer mod. I suggest deleting your mods from their folder or mod manager, and deleting them from the main file of your BG3 game. Then do a repair on the game. If you still want to play with most of your mods, add them one by one and check every time when the issue pops up, so you can leave those mods out for now.