Clean Edges on Overhangs Test Square

This is a very quick test for overhangs on all 4 corners.

I'm hunting down a error that gives me broken areas on prints with slight upwards overhangs.

My printers can manage 2 out of the 4 tests ok, and two squares look broken on the edges of the overhangs.

Either it's the front 2 that are broken, or two on the side, or the two in the back.
I don't get it. Been hunting for this problem for months now.


The 0.2mm layer at the bottom is for easy removal and writing down the setti