Might want to check the caulking around your sink and your sink covers. Mine was not caulked/sealed properly and water has soaked into the pressboard underneath. Unfortunately some of the thin laminate has separated. I re-caulked the sink tonight but wished I had checked it sooner. Hope that keeps it from getting worse.
The sink covers did the same thing and were replaced under warranty but new ones are coming apart too. Not sure what to do about them, no great way to seal the seam but suggestions appreciated.
Love my Forester but a little bummed that it did this in less that 2 years, ~80 nights camping.