Play Montage undesired interruption

Good afternoon,

I am pretty new to the UE4, I apologize in advance for my lack of knowledge or if this topic as been mentionned before. I face a problem that I have hard time with :

I want my character to play an animation on a certain event called, but not everytime, so it is under a bool condition, that is set to true after 10 sec delay.

So here it is ; if I re-call my event before the animation/montage/statemachine ends, it is interrupted immediatly, even if the bool branch just before is false. For a better clarity, I’ve got some pics :


It is like the exec flow cannot be interrupted or changed upstream during the animation ?

I would really appreciate any help, if you need any other information, don’t hesitate.
Thank you in advance.

Can you show what function is called after False branch? Is there another montage?