Unable to set up a "Look at/LineTrace" event

Hi there !

First of all, sorry for my English it’s not my native language.

My problem is that i’m unable to set up correctly blueprint in order to be able to set up an event when i’m looking at an object.
I search and follow multiple posts on ue4 forum but i’m unable to correct the blueprint myself.
The problem is that when i move my “linetrace” out of the target object, my blueprint function don’t stop.
My lineTrace look good, It seem’s my problem come from my “branch” node of the object BP (this one understand when i’m looking at the object and i got the “True” readout, but i never got anything about the “False” readout.

Is there better way to set up this ?

Here a screen of my playerCharacter BP and my object_BP.

Thanks for the help,