Beautiful boulder next to the classic 'Le Jeu du Toit'. At the time I climbed it I thought it was the hardest 6b I had ever climbed. I felt and looked like Bambi on ice at the topout.
Rain sucks, but broken holds suck even more. Remember, never climb on wet rock in Fontainebleau.
The sandstone becomes brittle, and pulling on it will ruin classic problems. Drying it doesn't help, because it's still wet and weak inside.
All you can do is wait for better conditions.