Quick question - are you starting at top of the table (opposite wall of the wall the monitors are mounted on). “home” is technically for the x axis at the plan north wall, not the plan south wall (wall with monitors). I was having this exact same issue because I was zeroing out too close to the monitor wall (plan south) assuming home was the lower left corner of the table - it is not.
Take a look at this earlier post: Motion Hold, X-Axis Runaway, and Loss of X-Axis Control - #5 by pendulumkc