Can't Make Alien Sim in CAS

Hi, not sure if anyone else is having this issue but for some reason I can't create an alien in cas? I can make all the other occult just fine but when I click to make an alien my game freezes and I have to close the game. At first I thought it was a cc issue but I removed all my mods and cc and it still wasn't working. I've repaired the game and even un-installed the ea app to try and fix it but nothing has worked. Any ideas on how to fix this? I have all dlcs and have the most recent update.