@TampaPrinter
Though I have changed all of it, I get that it could still be a BLTouch issue or a wiring issue and have nothing to do with the Duet but the firmware should halt the Z when it knows the probe has failed. I find it odd that it doesn’t, though it is entirely possible I just haven’t found how to make it do so yet.
You can check for BLTouch sensor error before probing to detect some errors.
if sensors.probes[0].value[0]!=1000 ; if probe is not in error state
M291 P"BLTouch ready to use" S1 T2
G30