Good information, but it’s not just Elvui.  My tests were conducted as DG alone, and yes I used DG to Move the OT window.

    Scaling might still be a thing, but I think the problem is not just incompatibility.  I undocked the Target Icon and placed it directly on top of the Small Window.  You can see the reload shift up to down.  With multistep, it’s pretty big adjustments and easier to see.