Help with CC and sims 4?

I'm not a hundred percent sure but it sounds like a mesh issue.

EA recently updated the meshes of some of their male underwear/swimsuits and anything that was cloned from the old ones are giving some people fits now. Not sure if anyone's figured out a quick fix for the issue that doesn't require redoing the things from scratch. About the only thing I can think of is to leave a comment on the original pages to let the creator know about it and pull those items from your game for the time being.

Sorry I can't help more.