Thread is shredding
I have a Janome 6600 and have previously had very good luck with fmq using different types/brands of thread. Today, I was working on a large lap sized quilt, doing some basic stippling in 8" blocks when the top thread would shred, right before the last two thread guides before the needle. This happened several times, each time before I could get one block done. I was using cotton thread in the bobbin, and a lemon yellow poly thread on top (the yellow to show contrast). Each time I would rethread, cut off the bad section, and start again. I even went as far as switching to a different spool and got the same results. When I went back to the cotton thread, I had no issues at all. I just wanted to use the poly for the color. I have some cotton thread in the right color on order, but it could be a while before it gets here. Does anyone have any suggestions on what I need to do? I've used poly on straight stitching with no problems, even mixing threads. This seems to be just a fmq issue.