You can stop the timeline playback by using its reference like so:
Or hooking up a Custom Event to the timeline’s stop pin directly. Also, the timeline can have an Event Track that will add an execution pin and fire only once at a specific time.
This took 2 day trial and error and google.
I have try to find solution while waiting for answer and finally find the wrong point.
It is the Branch node is in wrong place. Anyway I never know about Event Track in timeline. I have tried to use it and found that it is great thing to know. It definitely must use for me in nearly future.
I uploaded image of solved version below. (It is noting to do with middle Branch)