This is part 1 of this bug, which is a twofer I encountered in recent gameplay (the other part will be reported as "Tans Become Permanent")
As you can see in the snippet photos below, the tan markings are not actually aligning to this specific outfit. Specifically they have tearing at the chest that isn't present in the clothing that was tanned in. This is largely a small concern if it weren't for part 2 of this bug which is that these lines became permanent.
