We have a 2018 heartland bighorn. An 8-in crack has now appeared above our slide from the corner of the slide up to the roof. This was not caused by an impact. Has anyone else had the body of the fifth wheel just crack and if so do you just take it to a body shop and have them fix the fiberglass. We called the company and they said it is purely a cosmetic issue not anything structural. Any advice on how we can get this crack fixed would be very helpful. We have waterproof silicone on it right now to keep from leaking. Very disappointed that this happened on such a newer fifth wheel though