Multiple Layered Blend Pose not working

I have a layered blend per bone node in my AnimGraph, which works with one Base Pose and One Blend Pose, but when I add the second Blend Pose layer, everything is cut short.

The two blend poses are for the arms, one blend for the left and one for the right. Under the Branch Filters, I have set the appropriate bone names.

Any thoughts on what I might be doing wrong?

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-Sterling