@ChocoCub I've never had a sim's actually looks change before! I would be mortified! :o
I do have custom sliders installed but Mikezumi doesn't have any because she was made prior to my use of CC and mods. I don't think this is a CC issue, though, because I remember it happening years ago before I used any.
@puzzlezaddict Thanks for pic tip! I don't play in windowed mode and I rarely have need to take screen captures but will be sure to note this for future reference :)
@SemaviLady Thank you for making the gif :) It was a great help to me. I can now definitely see that Mikezumi's face changed completely. There is not a single feature left of her right down to her prominent ears. All that is left of Mikezumi are the trimmings (hair, brows, lipstick).
I have been playing TS3 since it came out and for more hours than many people have to spare and know that facial features do shift a little with smiles and other expressions but this is something completely different. The image did alternate over two sim days but not just short bursts to reflect moods. It would last for many sim hours each time.