Well, haven't played this game in a while, figured I'd try it again now after a bunch of updates. Immediately got FATAL ERROR in the main menu after opening the game. Tried to run it in admin instead, didn't crash on menu this time, however I consistently get FATAL ERROR now when the character gets up from the bed and looks to the side.
I guess I chose the wrong update to give it a go again, shame on me
EDIT: Alright, I thought about it and decided to check the save file location in AppData, removed everything in the SaveGame folder, launched the game again and now I don't get FATAL ERROR. I guess that's the solution ?