Hello! I did not notice this when I bought the trailer 6-7 years ago. Perhaps it has started or worsened during her 4 year vacation, sitting in my driveway?
Anyway, the rear cabinet is sagging in the back, on the curbside. It starts on the far left (curb) corner, and resolves in about the center. It partially covers the metal frame of the window.
I was just preparing to redo the curtain rods when I noticed this. I should probably also mention that I have never packed this cupboard with heavy items, so it has not been abused.
I can't quite tell what failed in there, or how it should be fixed! Any advice or suggestions much appreciated!