I wanted to do a superflat survival. I go into my new world, but when the world is generating, I see that there are clouds below me under the ground!!! What is happening??? when the world is fully generated, I look up in the sky and I see no clouds! I press esc to the pause menu and did this: Options>Video Settings>Clouds. I check but it says the clouds are on. I think this might be a glitch.
Clouds are rendered at level 127 no matter how tall your world is. You've probably made a superflat world consisting of more than 127 layers of ground.