Mainly about hdt and bones. When the first installation enters the game, hdt self-checks and installs, but only once. So when you are transported, summoned or transformed into a werewolf, your body hair does not change with your bones, so it is a bug. Physical clothes may sometimes have similar bugs.

At present, the solution is not very effective. In this case, you usually save and read the file, or wait for a period of time (or it may not work).

You can also try to modify HDT.xml, and you can download this file again to solve this problem.

Physical hair is only used when taking pictures. After all, it is immature.