I beam frame, frame failure, compartment doors popping open, walls moving, lag screws incorrect. RV is available for inspection. compartment door popping open and tings falling out, walls coming loose and RV breaking apart king pin breaking at front of RV and coming loose from two vehicle. It has been reported to dealer service center The problem has been inspected by the MFG Dealer the problem started cracking of floors, loose lag screws, bent I beam, walls moving.