No, it is not your machine that is at fault. I have some old and some new C&C thread. Having lots of knots and twisting on the new thread. The old thread is ok. This thread coming out of Mexico is very inferior. Although I have priced other brands, more expensive, I will not be buying C&C thread. As long as we, the consumer, keep buying inferior products, the manufactorers(sic) will keep making cheap products.