Unreal Behavior Tree Flickering


Im trying to make a basic AI, I have followed the tutorial on here: https://docs.unrealengine.com/latest/INT/Engine/AI/BehaviorTrees/QuickStart/index.html

However when I try to run the Behavior tree, the tree itselves flickers like a christmas tree and no movement.

AiController BP:

All I do here is send a reference of my player to the behavior tree key, then I run the behavior tree.

Then I have my Behavior tree that is pretty simple.

BlackBoard Values:

I have verified the name of my key with the name in my AiController BP. they are the same. not sure what is happening.