We are running a 2013 635f header with air reel and we're doing some field peas. Sometimes the crop will get hung up on the end of the table. The last foot or two. It'll just sit there and build up. No matter where I position the reel, the air, or set my reel speed or travel speed at it'll still do this. Occasionally it'll do it towards the center of the table too. The table is clean on top and underneath. Any ideas on how to fix this?