Can not make aliens
I am currently experiencing an issue in CAS. When I go to pick and occult to turn a sim into an alien my game freezes and then the screen goes white. Same with adding an alien from the bar at the bot...
Forum Discussion
All mods being on the current version doesn't mean some aren't broken.
See the resources linked in https://forums.ea.com/discussions/the-sims-4-mods-and-custom-content-en/mod--cc-issues-start-here/5035292
