I have a problem with **bleep** on female sims

In the past, the **bleep** of my female sims worked very well with CC skin tones. However, in recent days, I don't know why they have turned strangely black. I have tried many ways such as deleting skin tones, deleting locale and texture files in Mods, reloading WW and **bleep** CC but to no avail. Have you ever experienced this situation? Is there any solution?
Thank you <3