If someone could please help me with this issue, when i place the BP helicopter in the world it works perfectly fine, however when i spawn it in the world, i get a runtime error accesssed none, I have fixed the error by setting the blackboard ref on event begin play, but for some reason the Enum state is not working thus the Behavior Tree is not running. it said the error was coming from blackboard component ref. Here is the Enum that is not working.
and THIS Clears the Errors
Any help would be greatly appreciated thank you.