How to make an ai move to a pawn using the behavior tree

I have made an ai that will detect other versions of itself. and it will chase and hunt all of its duplicates, now I need to follow a different type of pawn, I am using pawn sense to open a decorator on a new branch of the behavior tree for when it sees a specific pawn. now the only problem is the ai freezes when it gets there because nothing works when I try to get it to move in the direction of the pawn. so basically I’m asking what blueprints I need in order to make the ai chase the pawn it sees.