For me it's Brother- I had one years ago that would never finish a project. Could only get to the 1/2 way point. Like 1/2 a zipper !/2 a pair of pants. Well I thought it was one of those lemons you hear about . I have acquired a few of these through the years and every one of them acted the same way. If my older brother would try to finish my project it would throw a hissy fit. But if he started a new project of his they would finish and no problems from the machines. Hmm maybe it's the machines that don't like me?