Originally Posted by Candace
Sounds like you put it back together incorrectly. Get out your owners manual and make sure you've put the parts back in the correct spot.
Most likely this is true, I had that happen with my babylock espire when I put a different needle plate on I put it on in the wrong order, go figure didn't think it made a difference well after an hour of FMQ frustration, bobbin thread kept nesting and jamming, I read my manual, took it all apart and put it back together the correct way, sewed like a dream 2 minutes later