can't see anything when editing

I just downloaded the latest version of Unreal Engine but I can’t see anything when I try to edit. I can see all the toolbars but I can’t see what I am doing.
Is there anything I can do?

I actually got the same problem right now so i m kinda of released to know im not alone. And it seems like it got nothing to do with light cuz i tried everything about world’s light or light added.