So, basically, I was setting up a scene to render and I was messing around with the settings to see what they did, and suddenly, my atmosphere disappeared. In the 3D preview, everything is black where the sky is supposed to be. When I start the rendering, everything is fine (i.e. the little dots that appear at first are there and they're blue in colour where the sky is supposed to be) but at the end of the render, the sky goes black. I'm not sure what I did wrong, so could someone help me?
Edit: In addition, when I zoom out to view the whole planet, it becoms an empty ring.
P.S. First post here!