I had one quilt and was trying to FMQ border only. Just 3-4 inches wide and using the same machine I always use. It just would NOT work, thread broke every few stitches. Tried everything, nothing helped. Finally I switched to another machine and was able to finish it. Wished I hadn't. Never did like the way it looked though I had been sure it was what I wanted to do.
I think my machine was trying to tell me something! and I wouldn't listen........
And by the way, have had no further issues with the machine.