BTService breakpoint can't fire

Behavior Tree:

Service:

Play, and this breakpoint will never fire.

It seems that no one will answer my question, so I can only turn to myself.
After struggling for a few days, I decided to rewrite my Behavior Tree. After rewriting, the problem is solved, but to be honest I don’t know what the reason is. I tested adding two Nodes that return false under the selector, but the tick method still Executing. If someone encounters the same problem, I can only provide you with an idea: The Tick method will not be executed when the node where the Service is located is not activated.
After testing, the order in which the Service is called is:
ActiveAI > SearchStartAI > SubNode > TickAI > DeactiveAI.
Therefore, ensuring that the Service node is active ensures that the TickAI method will be executed.

Ok, it seems that blueprints are not so stable for triggerring debug point, if you met same problem, just select or unselect your debug filter near the PLAY button, somethings it works.