I am quilting a baby quilt on my brother 1500 S. The thread keeps shredding. The quilt has a lot of seams and I did use basting spray. I changed the needle and have adjusted the tension. I even changed thread andI decided to make a practice quilt sandwich before going back to the quilt and everything is fine on it. When I quilt on the baby quilt, it seems like every time I go over a seam, the thread shreds and breaks --ooh the language coming out of my mouth !! Please help?