Glitched eye texture on game generated townies?

Hello! I have recently noticed a problem with some of my game generated townies and their eyes. Their eyes all have a weird texture in comparison to all other sims, and it seems like this only started happening recently. Initially, I assumed it was a problem with CC but it still occurs even when removing all cc in the game. 

When bringing these sims into CAS, there is no eye color selected. I do want to include that it seems to occur the most with game generated Snowy Escape sims. I've included more examples of the eyes below. All help is appreciated, thank you!