Beautiful line. Did this boulder following a straight line without using the bucket on the left, makes the line very nice/pretty to climb. When you have your left hand on the sloper just before the top, you can either use a very hight climper for your left foot, or, if your petite like me, there is a small tiny crimpy whole you can use as intermediary right foot (to get higher from the good vertical crimp).
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.