Animation Will NOT Fire

Hi, so, I was following a slightly outdated tutorial and the guy on it made an anim graph like the one included in the screenshot, but whenever I try to get it to work, the animation will not play. I don’t know what’s wrong, because the blueprint script is working everywhere else but the animation. If anyone could help I would really appreciate it. Thank you.

Link to tutorial: UE4 Ledge Climbing Tutorial Part1 - YouTube