Mach3 with an Omio cnc.
I have a probe script that works perfectly when it works, but it's 50/50 whether or not it will work or not. The behavior is the script runs the g31 command, and prints out a debug message that occurs _after_ the g31 command, but the motors don't move, and neither does the DRO.
Jogging the axis that I'm trying to probe a bit then lets me run the probe, but even this fix is only 90% effective.