I don't think it is that she's being silly and not trying. On the contrary, I think she's trying very hard, but I suspect she may be worried about stepping on herself, hence the moving forward. She does get worried about stepping on herself and I've run into this problem in other exercises. Even at the fence she seems very tentative and occasionally backs a step. I am making sure it is at a speed that she is comfortable with, so it's not like I'm rushing her or anything. I've actually gotten her to sidepass over a pole without drifting around a couple of times.
Any tips on how to get her over this? Any exercises that would help her coordination?