Auto bed leveling offset issue
You do not need to adjust the area yourself for Marlin 2.0, please look into probe.h and into this answer.

You only need to enable the offsets:

#if PROBE_SELECTED &amp;&amp; !IS_KINEMATIC
  #define MIN_PROBE_EDGE_LEFT MIN_PROBE_EDGE
  #define MIN_PROBE_EDGE_RIGHT MIN_PROBE_EDGE
  #define MIN_PROBE_EDGE_FRONT MIN_PROBE_EDGE
  #define MIN_PROBE_EDGE_BACK MIN_PROBE_EDGE
#endif