I had a similar issue - born werewolf aged up to teen, nose wasn't showing up, hit randomize with cas.fulleditmode on and that resolved it. This was after I had to resolve a primary bug with her beast form though, which was that my teen wolf (lol) wasn't showing up with fur in her wolf form either when I went into cas to edit her appearance immediately on her aging up, so before she'd experienced a transformation, or later when that transformation hit. Eyes, clothes, and accessories showed up normally but wherever fur was exposed including her face, it was just a black void. I went forward operating on the assumption maybe the game would wait to generate a fur pattern until she transformed - no such luck. Guessing that may have been my fault for editing in cas with the cheat running before she'd transformed at all, though. If anyone else has had a similar issue would love to know; and, just wanted to add my voice to the "this fix works, thank you" chorus.