heyas; you know what? this happens on the left rear fetlock on my horses. are the arm ik's off by default? try turning them off (in both figures, and by default; not after loading.) i dont think i ever figured out why it twists up like that. i do know if you tap the body part with the tools, it usually straightens out. sorry, but the best i could come up with was a note on the bug and how to tap it and fix it. you dont have to move the body part when you tap it, just... tap it. (i usually use the move tool; maybe its a magic wand or something, i dunno.)