AI Not Moving in Basic Third Person Game

I followed this tutorial video Zombie Horde | Unreal Engine Tutorial - YouTube for a simple start to enemy AI that followe me around the map. I have looked over this 100 times and can not figure out why the AI won’t move. I can use the debug tools to see the BT is firing, and all of the logic is flowing through the event graphs as expected, but the AI just won’t move, they stay in place.