My shower wall was cracked with the spider cracks within a month of ownership. Dealership looked at it, approved for repair but said they needed a fiberglass repair specialist. They were going to fix it in the off season as they said no leak issue but my trailer ended up back at the factory for repairs so it was taken care of there. We never saw it spread but it only made a few trips before getting fixed.
2014 Crew Cab Chevy Silverado 3500 4wd Duramax/Allison
2014 Sabre 34REQS-6