For me all supernatural sims cause problems in the game, I can't go with a sim to another lot because the game crashes or loads endlessly, the same with saving. It's a total disaster, you can't play if you have supernatural sims in your family, the same with trying to create a supernatural sim, it just disappears and the lot is empty or the computer freezes completely on the save and only a computer reset allows you to exit it. In addition, even in the gallery all my supernatural sims have changed into regular sims. I had to remove all the mods that used the xlm injector because otherwise I couldn't load the game at all.