Noticed two more "lumps" on the rear of the trailer. Definitely looks like fasteners of some sort working their way out right where the rear storage bulkhead attaches to the rear wall. One is directly below the other about three inches apart. Contacted dealer about this and it appears there is no way this can be caused by water or leaking windows.
Now I've been told by the dealer that PrimeTime/ Forest River WILL pay to repair both defects. Not sure yet if a body shop is doing this work or if it's going to be the dealer. I'll keep you all posted.