I had a needle break and seize up my Hook Assembly. After getting it all fixed I attempted to embroider a shirt. After starting the machine it turned out that the needle that was being used was not the one selected on the file but some how was 4 needles ahead. #2 needle was being sewn by #6 and # was sewn by #7. Also they were only sewing about 10 stitches before shutting down and stopping. I read that the reason it was stopping was because the sensor was sensing another needle. Does anyone know how to fix the problem. thanks for any help.