Can someone please help me. I am using a newly digitized embroidery design, and it has sewed out perfectly for me about the first 5 times. All of a sudden there are problems with it. Have tried different hoops, backing, changed thread, bobbin thread, needle, everything.Then it sews again good 1 or 2 times, and back to the same old stuff. Am using the same exact shirts to sew this design on. Has anyone had this problem before?& Would appreciate any help. I have a Tajima TEHX-C1501.