When it asks you to press front right - try pressing all 6 limit switches just for the hell of it. See if one of them is wired up wrong.
FYI you really don't need the x axis right switch, the y axis back switch or the z axis bottom switch. You can use the UM just fine without these 3 switches working and with no bad effects. The UM has software limits for these switches anyway plus if you force the stepper to go beyond the end of travel nothing will break.
We even swapped out the Right and Left (blue) wires to see if it was the switch. Same error after trying that.
Suggestions? Anything we can test or do we need to replace the limit switch?
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