Are you getting the correct walking foot for Your machine? I have had mine for 10 years, never had a problem with it . shortly after I purchased it from the dealer ( boy, it was expensive!) I saw one for much less - bought it thinking I would return the expensive one. The ( off brand) one did not work so well, skipped & broke my needle. I decided it was not worth possibly damaging my machine and went back to using the one for my machine.