I'm trying to use the Python from "Creature Base Animal World Vol.5". Whenever I apply the "Crawl", "Crawl Fast", or "Swim" motion to the Python iAvatar, the snake distorts into an unnatural "U"-shape (you can see the bones distort and 'leave the body' in the attached picture). I've re-installed using both the .exe and .rld versions with same results. I'm using the latest version of iClone (7.4...)