I know this is an old topic, but it is mine and I wanted to update it in case somebody finds it searching for their own problem.
My machine had a couple of problems that were causing this issue, but the main one was the spring after the tensioner was adjusted so high it wasn't holding resistance against the thread at all. Also, the walking foot was somehow a little off center and that was causing the material to push back ever so slightly towards me every time it came down and contacted the material. The repairman that found these things also adjusted the presser foot tension and now my machine runs "Like a Singer" -please excuse the expression...
I hope that helps somebody having the same issue.
My machine had a couple of problems that were causing this issue, but the main one was the spring after the tensioner was adjusted so high it wasn't holding resistance against the thread at all. Also, the walking foot was somehow a little off center and that was causing the material to push back ever so slightly towards me every time it came down and contacted the material. The repairman that found these things also adjusted the presser foot tension and now my machine runs "Like a Singer" -please excuse the expression...
I hope that helps somebody having the same issue.