Ok. I fixed it myself. I would like to upload my save file + crash reports but I just can't find the button here (if it exists). If anyone else has the same problem with the game crashing every time you try to leave an area: Just delete C:\Users\"USERNAME"\AppData\Local\Temp\Obsidian Entertainment Worked for me...
Hi, so I finished the hall of the unseen on that vulcanic island and as I want to leave the temple, the game crashes. This happened 3 times in a row now and I'm afraid I can't leave it anymore. Repairing the game and reloading on the auto save at the last room does not solve it.