I had incorrect GOTO last week when I made my first CNCV3 build. I did something simple.
a) unplug one of the axis cables going from motor to driver board.
b) Execute a GOTO command.
c) instantly you'll see that whichever axis motor is running, thats the one plugged in.
d) If the axis is running but pointing the wrong direction (like mine did), check the wire sequence if its for example Red Yellow Blue Orange from right to left, I made it Blue Orange, Red Yellow. Works well now.