is it a generic foot or one made for your machine, I use the ones that came with my machine, I like the open toe spring metal foot best I have a close toe no spring metal foot, an echo plastic no spring clear foot, and a plastic clear spring darning foot that I had from a previous model, They all do a good job, but have a different feel to them but I prefer the open toe spring metal, They are all made by my brand, no generic foot so they work well for my machine. I'm not saying generic won't work but if they are causing some of the problem you might want to try one made for your machine