Problems with saving step and dir pulse in mach 3 motor tuning , each time i save all 3 axis and each time returns to zero , no matter how many times i cange and shave axis settings and then save settings it goes straight back to zero , running it on windows 10 and this has only just started happening.
cheers

Look in the motor outputs to make sure they are enabled and have pins and port number specified. If it just started doing this, then see if you can recover the XML from a previous run.