@droftarts I can confirm the miswiring causes the z probe to not report back to the main board. I tried many times and while the probe would deploy it would not show any value in the UI but 0 when manually touched.
My 4th was just delivered and after swapping it out it worked perfectly instantly. With the wrong wires going to ground and the Z probe acting as the 5V had fired something for sure.
With the 2nd one I did 100% hear a pop when I issued the M401 command.