I have had to make some adjustments to the location of my camera and I need to go through the process of recalibrating the lens (120 camera) and the camera itself. When I attempt to capture the dotted pattern for the first step the entire computer locks up.
If you have a honeycomb bed and you’re doing the lens calibration on the machine, cover the bed with paper, cardboard, or a bed sheet. The honeycomb pattern gets confused for lots of circles.