Not sure if this is the issue here, but lately it seems like what you see in the “live” window is not a reliable representation of what you get when you save out a “screenshot.” It is frustrating.
Hi @JammyML it looks like you had layered export with “Apply Alpha” enabled when creating the rendering. This will make everything that’s in the background of your scene (e.g. sky) transparent. Depending on where you open the .png file this will make the windows appear either white or black, but they’re actually transparent: