I have never completely relied on the automatic bed leveling.

I home my 3D Printer,
Then using using the LCD drop the Z-Axis to 0.2mm. (the thickness of a piece of paper.
Disable the stepper motors using LCD.
Manually move the nozzle to all four corners and adjust the bed leveling be able to slide the paper under the nozzle.
This mean my bed is level, and If it is not.
This only means that I also Have to adjust my Dual Z-Stepper motors to level before Bed leveling.

Now that this is complete I can use the Auto Bed Leveling and be pretty sure that i can print a complete Bed test Print model.
Over the years learned to do a complete alignment of all axis plus align dual stepper motor axis - in under a few minutes.