do i think bed, rails, etc can contribute to your issues @JohnFiott , yes.
I think getting flatter bed can help.
However i don’t think this is the root issue - it just helps mitigate.
However I am now utterly convinced their levelling system still has fundamental bugs, i also agree I think I have a lemon.
Fundamental Calibration Issue…? - Snapmaker 2.0 - Snapmaker: where creation happens