Was the trailer on level ground when you tried to button it up?
And have you ever noticed alignment issues before?
I bought my Rpod used and the previous owner had trouble closing the bump out. When I got home with it I found that the whole door was crooked so I removed the screws on the piano hinge, aligned the door corectly, then drilled new holes and re-screwed it. No more issues. Looked to me like it had been installed wrong at the factory,
2016 R-Pod 176T
2002 Avalanche Z71 Tow Veh