MP3DP V4 Build

A 1.5mm dip seems kinda big. I think it could work if you turn the leveling fade up to 10mm or so, maybe even a more just to be sure.

Fake it and lift that corner up with something to see what happens. like put 5 layers of Blue tape in that low corner and make sure it covers a few probing spots. See if it changes or not. Along that side you are showing a total of 2mm out.

You are sure the trucks are not hitting the rear corner blocks when it is probing?