Finding out which Anim Instance triggered my Anim Notify

In my Unreal Engine Project i have Two Animation Blueprints that are linked withing my MAIN Animation Bluprint. When a Notify State gets Triggered within one of those Sub Anim Blueprints I NEED to know which of the two Anim Blueprints triggered it.

The Begin Notify Function gives me the Skeletal mesh → Anim Instance but that is the MAIN Animation Blueprint. How do i find out which linked Animation instance the Notify State was triggered from. Is there any way to get that from the Anim Notify Event Reference?

I have also tried to put the Animgraphs into to differently called States / State Machines and then differntiating them via the function is triggered by State Functions but it simply always return false.

grafik

I also tried it with mirror Data table and the “Is Triggered by Mirrored Animation” Function which ALSO only ever returns False so i am at my wits end how the differentiate the two Anim Instances.