Able Ability System Info and Support Thread

Howdy, I’m having an issue playing an animation using the Ability Animation Node, on an ability that IsLooping, and Channeled indefinitely.
(The idea is to have an ability perform a block with a corresponding block_loop animation)

I followed the tutorial listed here and that works,
but If I try to do a Layered Blend Per Bone, or play any other animation that isn’t the “Play Ability Animation” node, I always get a pop/stutter of the final animation.

Am I doing something incorrectly?