Setting Y offset on snapmaker breaks auto leveling

[Temennigru]

Setting the Y home offset to -20 (M206 Y-20) (because your printhead is offset due to an accessory or something) makes auto leveling stop working.

[Temennigru]

The machine refuses to level the top corner point when Y offset is negative

[ldp7]

PLEASE TRY TO USE THE COMMAND M206 X-19 Y-10 Z0 M500 SAVE SETTINGS

[Temennigru]

I did this a few weeks ago, but if I remember it correctly, a Y offset of -10 would still break autocalibration. Only setting it to 0 got it working again.