This has been bothering me the studio sky light shows the environment map’s original lights in the image therefore the viewport and in any renderings. We need a complete gray image where you don’t see the studio lights in the scene’s shot this map being used as a standard map not is not good in my opinion.
RM
Do you mean the ‘backdrop’ is showing the Studio environment but you want it to be a solid color? The Rendering panel should have a default of solid color selected so make sure you have reset the file to the v6 rendering defaults if it was a v5 file that you imported. You can do this in the Rendering panel using the Reset to Defaults button. Does that help?