@3ukkieJust save your game, make your sim teen again with a cheat, then check if sim's character values are enough, save your game (in another save slot) and make this sim grow up again. if the problem is there, then you'll have the save needed.
@crinrictAlso, I tried MCCC mod in my game - when growing up, this mod indicated some error occurs. Something about "dictionary values changed" or something like that. I've googled, it must be coding-related.
With the alien-vampire hybrid ? That's bound to have errors as those aren't supposed to exist. That you can make them without cheats/mods is the bug part there.
