Unfortunately it makes no difference, if I use the original V4 or Sasha-16 (2019 Edition). The bended thig looks exactly the same. I think this problem is caused by voluptuous bodies in combination with a little bit more of bending. Here are the bending settings of the right thig and the full body morphs. TorsoThickness is 1, HipSize 1.5 and FantasiaBody 0.5. If I set them all to 0 everything looks fine. I think I have to learn how to make my own morphs to fix this. There seems to be no other way.