I am in the middle of trying to finish my quilt using as decorative stitch and my machine decides to not sew the decorative stitch correctly. It is only stitiching the stitch on one side (kind of hard to explain) the stitch is got lit two little arrows going up the sides on the right and left and now it is only sewing on the left side don't know why. Can anyone tell me why this would be doing this, I have changed my needle, changed the foot because I thought it was the walking foot that I was using, redid the bobbin, rethread the machine and last adjusted the tension, I GIVE UP now I am stuck I need to finish this for an order for mothers day. HELP. Mahalo