AI Invalid Target

Hi, I’m learning AI and trying to implement it in my 3D pong game to control the opponent paddle.

I have attached my behaviour tree and ai controller.

Nothing is currently happening, but with no errors showing. When i press ’ to see the in game ai config it says that the move target is invalid though.

Is there something simple and obvious I am doing wrong? I do have a navmesh beneath the opponent paddle.

Thanks