Is there a kinematics calibration guide?

you may want to also try the calibration spreadsheet at

and then enter the values manually

This is an experimental process, but the math says it should work, and since you
are having problems with the standard calibration…

But first clear the .ini and try from scratch

one other thing, if you are in triangular kinematics, it should not be showing
you the settings you show in the screenshot, it should be showing you a shorter
list that has rotation radius.

it looks as if you are not actually in triangular kinematics