[JRTJH]

It is ALWAYS frustrating to find a problem with any equipment. Finding water in your bedroom is very frustrating. But the problem may well have not "just occurred quickly" but could well have been there for some time. If your RV was parked in storage for the winter with the nose slightly higher than the rear and the leaking side slightly higher than the other side, water runoff may well have prevented any water from getting to that area. Water may have collected under the sealant edge, frozen and as it expanded pulled the sealant away from a very small leak that you'd never noticed. Over the winter the freezing and thawing kept separating the sealant until there was a significant leak, but you never noticed it in storage because of the way the water drained off the roof. Then, once you set it up on site, more level than in storage, water started flowing toward that area and leaked into your RV.

This may not be what happened, but I'd not completely rule it out. At least Keystone is repairing it under warranty, so you should be good to go after the repair.

This is a good example of why we all should check our roof carefully at the beginning of each season and at prior to storage as well. Roof maintenance is the only way to stay ahead of this kind of problem.

Good luck with your repairs and welcome to the forum.