Sub Behavior tree immediately failing when called. When using other behavior tree with no Blackboard data works fine. Advice?

[ckitchen]

[Polite_Muon]

Hello ckitchen, welcome to the Unreal community and thank you for posting this question.

Here is a neat thread where the members go over how they would implement a sub behavior tree. user Ogromord talks on how they would use blackboard keys for things one would expect in the in-engine tasks/decorators.

If you would like, here is a brief C++ video on nested behavior trees.

I hope this all helps.

[eblade]

Your BehaviorTrees have two different Blackboards as their roots – those two blackboards do need to be compatible with each other. Not sure if that’s the problem or not.