We just installed our first set of the new rollers yesterday. Starts out fine but, after an hour or so the thread will not stay under the roller or in the groove. It comes out, feeds way too much thread through and then sucks the garment down into the needle plate. We are using a design that we have run thousands of times on the same garment and it keep happening after a few hours. We have inspected the rollers and there doesn't seem to be any grooves and it looks perfectly fine. What we are doing now is changing the thread position every time this starts to happen. Anyone else seen this or do we have something wrong? Sincerely, LiVawne G Moore Moore Embroidery & Designs 1724 Jerusalem Drive Round Rock, TX 78664 512-989-0518 Office 512-632-7826 Cell Moore-Embroidery@xxxxxxxxxx www.Moore-Embroidery.com