@crinrict I didn't notice the moodlet, however, I got the pop-up in the upper right that she had lost the tooth. That's when her appearance changed. I exited without saving. She was the twin of the original sim that changed. When I re-enter the lot, the first sim daughter changes immediately. I had decided to just keep playing, but then the second sim changed.
They are both teens, they aged up from children less than a sim day prior, so it's possible the loose tooth moodlet was there and I didn't notice. It's a large family, so I most likely missed the moodlet. I just left without saving and it reverted them back to their original appearance. I haven't gone back in since. I can send you the save if it'll help. I have all mods turned off.
