So my Percheron mare Delta has some mounting issues. She knows exactly what is expected of her, but she has taken to moving away from the mounting block as well as moving away when I get a leg up. She also starts walking as soon as I am on her, and WILL NOT stop when I ask her to. Today I was asking her to stop for a good couple minutes, and she was just doing circles and backing up, but wouldn't stand still.
I know she's not confused because at first she stood well, especially for leg ups, but she has started walking away. I'm not slamming her back. Today she was the worst for a leg-up that she's ever been, it took a little while just to get her to stop backing up and swinging her butt away from me. When she finally stood and I got a leg up, she started walking off when I was still getting on.
I cannot corner her because there is electric wire on 3 sides of the arena.