Using Button in UMG Uniform Grid causes PIE/Editor to crash

(Step 1: Button Background):

The Buttons are made of 2 parts. The first is the “background”, which has a A Button (no functionality), with Text as a child (that’s why I had to use a button, image cannot have a child). These are wrapped with a size box, which in turn, is wrapped with a canvas panel. There are 2 variants, but both are the same, just one is square, one is rectangular (as you can see in the first screenshots). Both are set to hit test invisible.