Our Bullet Outback by Keystone has lost its hold on its self. 2019 model. The canvas has a plastic band on the edge of it, that clips the canvas to the wall. The clipping Im referring to seals the edge that is up against the front bunk. Where this makes a turn on the right side, its coming off the track. It looks like its just a seasonal problem, cold shrinkage on formaly warm areas. Also two different materials being joined there. My question is, if you all have had this happen to you, Is there some way to pinn this corner so it won't come undone again.? On our old popup our top was coming loose on the bottom seal and the dealer fixed it by putting a short screw in the canvas to pin it. It worked. Here Im not seeing a way to pin this thing. So Im thinking maybe a drop of glue or silicone in each corner of each bunk. I just didn't want to do what someone has tried and found that the silicone or glue damaged the canvas or the screw was in the wrong place. Thanks to all who read this for their help.