My problem was related to the door sensor! I solved it by taking the advice found here: Door Detection Faulty
…In particular, using the image you supplied of how the magnets in the doors should be arranged!
Success with a cut (without having yet done the auto calibration)!
I’m running the latest versions of Luban and latest firmware.
Of note, even though Luban shows the door sensor feature turned off, the firmware was still demanding the doors closed, as though the feature were turned on!