So, an update - somewhat. I had come to find that the USB-B plug on the plotter had been damaged by the previous owner and the plug in port on the plotter was extremely loose. (opened up the machine and the plug is connected directly to the circuit board - was hoping for a ribbon plug connection, but no dice.) Thinking it might be a communication issue because of this, I ditched the USB connection and used the serial port on the machine with a USB to serial adapter cable and the file not getting to the plotter problem that was persistent before is now gone, but after running three successful cut jobs, the fourth stopped in the middle of the second segment again. I asked this in the Mutoh forum, but has anyone had an issue with the plotter stopping due to a motor error from the machine yanking the roll too hard? I've set every setting I can find on the plotter itself and in Flexi to slow down the cutting to 20 cm/sec. but any front to back movement of the material in the plotter is always at what seems like that fastest it can possibly go - no setting changes that I've been able to find have changed it. One job had 2 8 foot long print runs - so when there is usually that much material going through the machine, I'll roll it up on a core so I can get it tracking straight and it doesn't kink up. Well, the plotter runs so fast that keeping the roll on the rollers is pretty much impossible. If this happens on my Roland CX-300, (too heavy of a roll with not enough material unwound) the machine will stop and give a motor error code and you have to restart the machine. The Value Cut just stops in the middle of the cut like it's finished. Still searching...