I went out to the RV today and this is what I found. It seems one of the main doors has cracked.. The other door up at the front is fine but the one in the back is not. Here's a pic. What could of mad...
My guess (it is only that) is water intruded into the door and froze. The water may have entered around the door latch/lock assembly or the fasteners where it is put together. Contacting the maker is the right move.