Hi! I was having this issue as well. I found after multiple tries that if I couldn’t get the silk wrapped around my leg on the first try coming out of the arabesque for the set up of the foot lock, is was almost impossible. I think it is possibly about using the spin to get the leg wrapped for starters. Whenever I had to keep re-trying to wrap the leg after the first try I could not get he foot lock on. Hope this helps.
