v2.8 cycles - weird color change in Fire Simulation when over background When I render a frame where the fire goes beyond the plane and over the background the color goes brighter and unsaturated. This happens only in the final render, not in the viewport render. (pic) Tell me if you need any other information about the material and object settings. 





This color problem is what I am talking about: https://imgur.com/a/hY1Y5oC
It is not a problem or a bug as you may think - the smoke is translucent/transparent so the light passes through it and you see what is on the other side. In this case - a plane that appears to be gray. Hence the change in color.
I guess you could increase the smoke density so the light wouldn't pass through it.