It might have gotten redistributed a bit, but unless you are on a major slope, I wouldn't worry about a little bit of movement.

My CGM got hit with torrential rain just a couple days after I put it down. A couple little piles collected in some low areas, but most wasn't really disturbed. I took a rake and spread the CGM out again wherever it had piled.

No big deal if they get settled between grass blades. I put down soybean meal right before the storm last week on purpose since i didnt feel like watering them down.