This is something that has driven me crazy for years, no matter if I go vanilla skyrim, or mod it. Fresh install or not I can not fix this, and when googling it I only get a few hits, with no solution. If you look closely you see the right shoulder/arm is longer/bigger than the left, and uses mods like SAM, or SOS just make it worse the bigger the charector is. Has anyone else encountered THIS, or has a fix?