Behavior tree looks good. I see you have the levels menu up, are you working on different streamed in levels in the meantime? They should be able to chase and attack the player if they are on their nav mesh, but if it’s a different level they may have trouble. Try and print out or use the AI debugger for every step of the process between detection, movement, acquisition, and finally the attack. Going to have to nail down which node on the task is failing.
You can also Debug a bit more in depth the the AI debugger: