Hi, I start a cut, sometimes as soon as it pierce thru the torch shuts off but the cnc continues moving as if the machine is still cutting (normally that happens with the holes) but wen it starts to cut the part it will pierce and advance a few inches in the cut and then voltage goes up to almost 300 V so the flame cut off and the cnc continues as if its cutting, but the weird thing that has never happened to me before is that the torch slowly starts retracting, I’m assuming that the voltage goes high because of that ( the increase in distance between the plate and the torch shotting off the flame). how can I attach a video showing this problem?