This boulder looks stunning and has some amazing mantle problems on it. Echoes is a technical mantle on a left heel. Once you are up the top-out may feel a bit scarry because the landing is downwards slope. Don't let it discourage you though! The top is well enough and the ledge you stand on is so good that it gives you the time to breath before topping out.
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.