I have had the "bowing" rear cap almost since new with the common response of that is normal. Well this past weekend while washing and inspecting the trailer I found my rear cap had bowed enough to slip out. Being my trailer is a 2013 and Camping World bought the dealer I originally purchased the unit from and no longer has any records of customers before the purchase I have zero confidence that it is worth the time or energy to fight. So my solution for now was to mount a metal clip bolted to the wall framing behind the center clearance light. I am thinking about bolting some kind of breaket for a "future" backup camera above the clearance light to help hold the wall in place. As far as I could tell there was no delamination between the filion and the backing board, the whole wall was bowed.
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