Originally Posted by Marjpf
I agree - it is the top tension that is your problem. I too have gremlins that play with my machine when I'm not watching. Sometimes the only thing that works is to start over and re-thread the machine.
I agree. Sounds like the thread is not caught in the tension discs. I'm sure you know this, but the presser foot has to be up to thread the machine properly, or the tension discs will be closed and eventhough you rethread, it won't be correct. Hope that's all it is!