Look at this thread post #8 ffor field adjustment of latch... do NOT overtighten
https://www.forestriverforums.com/fo...on-208726.html
Sometimes a hard rain at the right angle pounds the rain through the gasket
If you keep zippers zipped up the water will usually stay contained on the vinyl bunk tent top and not leak into the bedding.
treat your gasket and bunk lip edge with a cleaner before closing up, and then I spray on some 303 Vinyl UV protectant .
Lastly, replace gasket on the top if you think necessary. Available by the foot from FR.