Behaviour Tree shows "Steps Back: -1" or "Inactive"

Alright so I’m experiencing a really annoying problem with behaviour trees where I have everything set up, but when I simulate the game I get this “Steps Back: -1” instead of “Simulating” inside of the Behaviour Tree.

Inside of the AIController I have it set to “Event Begin Play > Run Behaviour Tree” and even the blackboard is connected. But I either get the steps back thing or I get “Inactive”, it switches between them. Anyone know what the problem might be?

I am having this same issue. Help anyone?

I am suddenly getting the same thing on 4.14. The AI is working properly but the visualizer isn’t.

Recheck all connections through the controller as well as on your pawn. You can also go into debugging for the AI within PIE (Gameplay Debugger | Unreal Engine Documentation) to see which controller is used, the replicate this controller within the desired behavior tree (drop down menu at the top)

Hey. Possible duplicate of this post here
It seems that your behaviortree is inactive due to the fact that you haven´t added any nodes to it. Try adding a selector composite node and a wait task node for example.