At this point I have re-flashed Marlin 1.1.5 too many times to count, and have made only minuscule changes, and had but forgotten about this problem.
Until I ran across this line of code " #define Z_HOME_BUMP_MM 2"

Quote Originally Posted by Roberts_Clif
Marlin 1.1.5 after Auto home while displaying CUSTOM_MACHINE_NAME Z-axis will rise changing the display to " Endstops Z " or "G28 Z Forbidden"
Well I have no explanation, thou it has stopped displaying. I believe that in the following line of code lies the solution thou.

#define Z_HOME_BUMP_MM 5 // changing from 2 to 5 would raise the z_home Bump above the Z probe sensor level thereby eliminating the errors.