So i Just reran the XZ bracket and it continues to fail in roughly the same place I think.
Here is my orientation (same as yours) and all my settings (as you recommended them.
What REALLY confuses me is how its failing. The Bracket fail picture is the one I pulled off the bed this morning. You'll notice the part that is supposed to be going up in the Z axis is very very misaligned and is not at the end of the bracket. I am not sure how this is happening at all... But if anyone has any grand ideas please feel free to enlighten me!