I was running into the same problem and found out the cause. I also have the SC series cutter using Inkscape and Signblazer. I watched one of my 18"x32" detailed decal run using the plotter pen on the vinyl backing for testing. I notice my laptop flashed, I looked at the cutter and also found the start a ghost cut not finishing 1 part but starting another by dragging the blade. Well, it's the screen saver I had setup on my laptop. When I set the Screen saver to NONE and changed the Power to NEVER turn off monitor, NEVER turn off hard disks, and NEVER go into System Standby.......Ran the detailed logo twice on the cutter and no longer see ghost cuts. Cuts out the detail with no issues at all. This was never possible before. Hope this helps!