Tan faces on lightest skin tone?

https://preview.redd.it/x8pa4nv3t40e1.png?width=568&format=png&auto=webp&s=006ee7cf75d39788027d6aef2f28efc93461fcf1

I'm generally pretty good at figuring out what mods are causing issues like this with my game, but I can't seem to find the source of this issue.

If anyone has run into the same problem and managed to fix it, please let me know!

Just to clarify: this issue shows up for all female sims with a light skin tone. It happens in CAS as well as on already-made sims. No other skin tones have this problem. I tried the bat box (tan & burn fix) but it did nothing. I have a feeling this isn't mod related and might be an actual in-game glitch.