I agree that checking the seals is a good idea. When we first got our Adventurer in 2017, I noticed a lot of light coming though the bottom of the large slide in the morning, which didn’t seem right. Looking under the slide, there was a gap between the sweep seal and the bottom of the slide. Pressing up the sweep seal, I could see the inside of our coach! I guess the new PowerGear slides rely on the sweep seal on the bottom to keep light and rain and bugs out of the RV. Anyway, Winnebago fixed the issue by moving the sweep seal up about a quarter of an inch and it has not been a problem, but it was a surprise.
2017 Adventurer 35P, towing 2014 Honda CRV