Home All Axes with Auto_Bed_Leveling_Feature

Here's the problem I'm seeing from Marlin:

When attempting to home all axes, whether AUTO_BED_LEVELING_FEATURE is enabled or not,

on RC3: the machine homes X, homes Y, then stops.
on RC2: the machine homes x, homes y, then rams the bed into the head (ignores the z-sensor completely).

I am using an AZTEEG X3 PRO board with CORE XY motion.

Thanks for any help or insight anyone can provide. I am in a major crunch to get this working, if anyone qualified has time to consult over Skype or the phone I am willing to pay for their time.

I am in a major time crunch & I look forward to reading anyone's helpful reply and/or offers to help.


-brand0drag0

Have you had any version of Marlin where homing with COREXY was working for you? I know we've made a series of changes affecting COREXY handling, so it would be good to know where this started to become a problem.

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For COREXY machines a common error is to confuse max and min endstop because the bed is moving. So max is at the lower end and min is at the top.