Penetration Issue

Hi Everyone, I have a machine running QTPlasmaC, using Sheetcam for CAM and a Primeweld Cut60. Rigid Z, no float, full THC with ohmic probing. My issue I'm pretty sure is THC related, I was able to verify that it is working, but most of the time both the up and down LED's are on. Watching the Z motor I can see it moving up and down as it's cutting, probably too erraticly. My issue is that on one stretch of cut it'll make a nice cut, then on the same cut it'll stop penetrating and make a wider partial penetration cut. I assume the Z height is moving up and causing the partial penetration. Any thoughts how I can fix this? The example is on hot rolled 1/4" steel running at 45ipm at 45amps. It will differ on the same part, same cut.

Can you send me your THC settings so I can see how they differ from mine?

Thank you

No one has seen this before?

I'm going to chalk this up as THC settings. Can you post your THC settings for me to compare?