Water has a knack for being mysterious. In the early days of my 2019 Flying Cloud, I had a total of 4 water leaks over the first 3 heavy rain storms we encountered.
Only one of the leaks (Fantastic Fan seal) was obvious; the other 3 were very tricky. Where we observed the water was nowhere near the source of the leaks. If the service center didn't pressurize the trailer and spray soapy water on the entire outside to find the bubbles, I'm not sure we would have ever tracked down the origination points. I tell this long story to make a relevant point: One leak was coming through an electrical outlet, but we found the water was getting in behind the seal on the front window rock guard plexiglass. The entry point and the exit point are quite far from each other.
Once identified, it was an easy fix. Good luck.
2019 Flying Cloud 30FBB
Bunkhouse is sold...something more "classical" on order!
2020 GMC 3500HD Duramax AT4
ProPride 3P w/ 1400 lb. spring bars