Request data + escalation (delegation) + complete the workflow

Hi,

I saw on this board a way by Vladimir to have a request data, with an escalation (delegating to another user), and the workflow completed if the escalation is not completed until X days for example. 

The idea was :

-> Run oarallel actions
-> On Branch 1 :
    -> Request data with escalation (delegate task)
-> On Branch 2 :
    -> Send Notification
    -> Pause for (5 minutes for testing)
    -> Send Notification
    -> End Workflow

 My problem is that the workflow never terminate if I don't complete the request data... Normally, the workflow must be stopped by the Branch 2 after the 5 minutes, isn't it ?
It is not the case....

Could someone give me an explanation?

Thanks and best regards.