Hello, currently using a mh871 and vinyl master cut v4.0. For some reason all the sudden when my cutter starts going it makes it through what seems to be the first line, usually an outline, then it veers off to the left until it hits the bumper and spools endlessly with the blade down. Ive tried unplugging both power supply and data. Restarted and reopened both the vinyl master cut and vinyl spooler as well as the entire computer with no luck. Please help me lol I have several orders to get done and the machine has zigzagged over almost 10 yds of material! Thank You!