Animation blend by bool problem

Hello, I am having a strange situation where I use Anim notification to set a bool, which will set a blend layer to not blend. I get it when an animation layer is not in action you pause that layer to save processing power, but the problem here is: because the animation actually paused moments before the transition(because I need to use the notification), when I reactive the animation layer, the whole animation started from the beginning and triggers that notification again.
And I saw there is a reactive child option in the blend node but that doesn’t do anything.


Here is an image of the stuck animation node. Once this layer is active again, the Equip_Rifle_Standing animation starts from the beginning again.

Any help is appreciated! Thank you!