If it's still in warranty I'd talk to the dealer about it and have it documented. I'd suggest if possible (I read it's in storage now) that you have someone run water all around the outside while you check inside. Leaks can and often do appear away from the source. Left unattended leaks can destroy the camper. Other than fire, water is the major enemy of any building whether it has wheels under it or not. It could be something as simple as a foreign object caught under the slide seal to a roof leak where the water ran down the wall. Don't ignore it.
2012 Laredo 303 TG
2010 F250 LT Super Cab, long bed, 4X4, 6.4 Turbo Diesel