Crossfire Pro UH60M arc stopped had to use resume from line

Finally getting my first cuts. 3/4 of the way through the program the arc was lost. I have no idea why. However I was able to figure out the resume from line command and it finished the cut flawlessly. Could not even tell it messed up.
14ga mild steel, RazorCut45 @45amps, 140 ipm, smoothing 0.0004, lead-in radius 0.0 in, 30 deg, distance 0.08, Pierce clearance, 0.055 in, Cut height 0.06 in, springboard 0.02 in, IHS (ON), Pierce delay 0.5, Pierce height 0.15 in, THC (OFF)