I have run into a problem where the ESS trips the steeper driver, bob into a fault and lock`s up M4.

I have tried restarts, hard and soft double check that everything is correct it is then if I go back to M3 I have to re install the ESS plugin to get it working again it does and runs fine then I go back to M4 and it happens again or the X and Z axis move then when I try to move Y it trips to a fault again it may do it a couple of times then just lock up..

the axis are set all correctly the Y has B slaved to it, A is for a 4th axis it turned off unless i am using it.

no I have not got the M4 licences yet I have to prove it better than M3 to get it.

I know there`s only 3 axis allowed for testing and that it is time limited.

the computer can run M4 I was using it with Darwin

so it`s something to do with the ESS or is that I have 4 axis running 3 + slave