Today, my Janome MB4 completely shut down after 4 minutes into a 45 minute project. It was like the power completely shut off and wouldn't turn back on. I unplugged everything, let it rest then plugged back in and tried to turn it back on. After doing this 5 times, it evenually acame back on and restarted the pattern. Once back on, there was no error message or anything. Has anyone else ever had this happen?