Complete design has gone blank

[rezande]

Hi
As I was working on my design, both views of my design suddenly disappeared. I am left with empty grey space where thay used to be, I still have the level buttons at the top of the page and the lists of the items that I've inserted.
Does anyone have an idea of what might have happened and how to fix it?
Thank you
rezande

[bdfd]

Hi,

I saw 3 possible reasons :
1. try to change the aerial view to virtual view or virtual in aerial.
2. The observer is in a wall and all is grey, you must to move it.
3. Your file is too heavy and your PC cannot visualize the rendering (try with another smaller file).

[:)]