A bit hidden in the back of this area in a little cave this boulder starts in steep terrain in the cave and can be finished with a nice kneebar going out left.
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.