This issue was reported here 2 years ago! But I have the same problem now. It is very annoying and I wish they would fix it.
Same, i have this issue since i bought the game in 2015, my first gameplay was obviously without any mods and this glitch was already there, this glitch only happens with the bigger lips who are a common mouth shape for blacks, i can't properly do my simself because of this, it's annoying,
I found a similar topic and the author literally have the same issue. Why this glitch is not still have been fixed ? https://forums.thesims.com/en_US/discussion/908149/genetics-glitch
6 years later since the topic creation and nothing has been fixed awesome
