If you hover over the enemy while playing in editor and press ’ it will bring up a debugger. It will show all the blackboard values and which task is currently running, that would help you a lot in finding out what the problem is. At the bottom of your graph you have an infinite loop on a sequence node that just runs a wait task, doesn’t seem right to me but dealing with these trees always confuses me, could be ok. Either way it is best to learn the debugging tools so you can hunt down future bugs.