Mold in wall board in Forst River Blue Ridge UPDATE

No cold weather camping He`sonly used it maybe 10 times and throughly cleans & makes sure there`s no dampness before winterizing. Insurance adjuster said it looks like it was in the wood and not what you would see if there were leaks or moisture possibly contaminated wood or glue. He did try the factory & they said he`s out of warranty so there`snothing they can do. Will pass the info for Magnuson Moss warranty act to him.