Very hard for me. I grade it 6C, at the end of my video is the hard move in isolation, more beautifully climbed, but I was too tired. Just want to say it's possible to do it not as desperate as my climb.
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.