Upon Mach4 startup I get this error code:
Output Signal Mapping Error in ConvertToPinNum! PinNum = -4
Also, my spindle won't release it's tool.
i.e. - the spindle doesn't seem to be receiving a signal when I hit the drawbar button on the mach4 screen (though the button flashes as normal to indicate the drawbar has opened).
I recently changed my m6 macro but only slightly and with guidance on this forum. I've done nothing else.

1) What has changed?
2) How do I fix it?

Thanks

Cycled through the drawbar signal setup again and it's corrected.
Apologies ya'll.