Stitch problem Singer 201-2
I was chain piecing a quilt and after I had sewed about 15 pieces my machine seemed to forget how to make a proper stitch. I didn’t change anything... just sewed along and all at once I had massive tangles of thread building up on the back sides of my pieces and the machine started to bind up. So I removed the bobbin, cleaned out the housing in case there was any lint or something else that could be causing the issue. I get everything all set up to start sewing again and now I’m getting nothing but the tangled mess every time I go to use it. Any thoughts on what the problem might be?