Sonic Pad + Vyper

I have a Vyper and have see online that a few people are using the Sonic Pad to control it with. I’ve followed the guiode in Ricky Impey’s video on configuring the Vyper and the Sonic Pad, but when I go through the calibration steps after installation, I get a “No trigger on probe after full movement” messages for calibration and Z-axis movement?

Any ideas on what may be the problem?

Thanks

Have you done the manual bed levelling prior to auto bed levelling, if you go back to Rickys amazing video guides 9 times out of 10 you have either a missed a command or setting (Trust me I have been their setting up two Sonic Pads)