GreyQ,
Fleece on top is a thought we didn't try.
WF was lubed and just came unscrewed. I think some part inside got out of place. It was working fine until it unscrewed.
Machine was set on the longest stitch.
Candace,
I had my stitch length at the max. With this machine is about 7 stitches per inch ±.
I had the presser foot tension about in the middle of the adjustment and tightened it. I reversed what I'd heard before. I'll loosen it up.
We had pinned the quilt together in every square. Many of the pins got in the way and were removed as we made the stitch lines. Maybe by removing the pins we caused our problems.
Perhaps some prior planning on the location of the pins so they can remain as we quilt would help.
Thanks,
Joe