QTPlasmaC - Skipping Probing

I appreciate you guys trying to help, but I'm not getting anywhere. Halscope shows me nothing, it's just blank. I can't upload a video to this forum, send me your email address and I can email it to you. This is very aggravating because it worked fine, until it didn't. Did I fry my 7i96s? Or my THCAD05? Because that's what I'm leaning towards.

It's supposed to just automatically probe before every cut? Where's the parameter? 

My version has IHS Skip and it is set to 0.

@Snow, I couldn't get anything on halscope, everything is dead. I went to Halshow and got the answer you were looking for. In Halshow, not halscope, you can see when a bit trips, this is literally what I was looking for (that and a more complete list of parameters, that would be nice). I clicked on the input bit for probing and the digital screen LED was red, during probing it would change states, or it wouldn't but the machine would still respond to the probe cycle (so I knew it just happened so fast the screen wouldn't register). We good. When I ran the program I found exactly what you thought was going on, the bit was coming on whilst the machine was cutting. There's some EMI that is enough to trip the bit. Here's the other issue, when the machine is done cutting the bit stays on for a couple minutes, this is why I couldn't test the probing, because it thought it was already touching the work.

I need to figure out if I can make a circuit that will bleed off the excess voltage or figure out why 24v is getting to the probing input pin when it's not probing. It might not be EMI, could be water, could be dust, could be water mixed with dust. It could be a lot of things, thank you for getting me on the right track.

I wish this forum would let me attach pictures.

Here's what I found. That bit staying on is triggered by the arc specifically, as I think we all expected. As it's cutting the bit will flicker on and off. By the time it's done cutting the bit stays on for a couple minutes after it's done cutting. I checked the voltage between machine ground and the probe input pin and I have about 4.3v that will slowly bleed off. Maybe it's a machine grounding issue turning my water table into a big capacitor storing just enough voltage to trip that bit. 

The water table is insulated from the machine frame right now. This wasn't really intentional, more a cause of what I built this out of. The water tank literally made of old real estate for sale signs (I sell real estate and these were free). Is there any issue with grounding the tank/frame to the machine ground? Either the negative lug on the 24vdc power supply or the 120vac ground from the wall? Is there any potential issues with the plasma cutter "ground" clamp being connected to either of these? My other option is to add resistance at the probing input pin. If I reduce the probing pin voltage enough at that pin that errant 4.3vdc shouldn't have enough oomph to trip that bit. Thoughts?

This is very helpful. I have a spare 24v power supply from an old 3d printer, extra relays and a bunch of 1N4001 diodes from my Megasquirt projects laying around. I might give this a whirl today.

The capacitor voltage bleed off with a THCAD is usually because you are switching the mains power to the Ohmic power supply. Do not do this, Hardwire it in so it is always on. It takes a long time for voltage to dissapate from a AC to DC power supply... I learnt the hard way...