Anyone have problems with the rear filler panel (the 2 flaps that fold up and down when you fold the seats). The cheap plastic after bending several times breaks, bad design. Plastic bending several times and doesnt break... that would NEVER happen! Anyone get that replaced under manufactures warranty? I took it and said since it was broke they wont replace it even, its broke cause of the bad design. And the other half is intact but barely. Or any suggestions of how to fix it???