The one I had did that and started pulling out from under the machine. One of the little plastic parts that line it up with the arm broke off. I ordered a replacement on ebay but it didn't come with the longer needle screw and I guess I lost mine when I was between walking feet. So I am still without one that I can use. Hope to buy a new machine that comes with one soon so just waiting impatiently. I hope you figure out your problem.