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...
Looks like a person with a 2012 Rockwood 5'ver had a similar issue, Lippert covered the door (company who made the part). Seems to me it's a Lippert issue and they stood behind the door outside warranty. Perhaps you can go the same route?
The side comment about Forest River hasn't been my experience. They've always treated me fairly.