Beginner here so I'm not even sure if this issue is because of a setting I have, or if it's a bug. So when I change viewports, I noticed the that the last two options just give me a greyed out image. Even in older projects I have which used to render correctly, it would give a trippy image. Tried recording my issue hopefully it helps!
This happens in Evee, but I also noticed that even in cycles, it would render it like this: