Hey, couple of questions... Did you actually teach the first horse in the video to Spanish walk or did someone else? Did you actually get the buckskin to Spanish walk eventually or did you not want to spend hours with him? I can see he did not understand what you were asking, you didn't reward him for moving his leg at all and then asked him to back up which makes him think you don't want him going forwards. Your blocking his forward movement, there are just so many things about this I don't understand. I felt I had to comment I am shocked by this video.

I don't think the horse understands what you want to be honest