Hi, my scene vanishes either partly or fully when I try to zoom out. It works more or less without much issue in 1, 3, 7 views but when I try to set a camera, the whole thing is gone. Sometimes even with pre-defined views, a portion or most of the scene is gone.
I believe it happens when I try to zoom out. Please see
Looks like your camera clipping is set too low for how big your scene is.
There are two places you’ll need to adjust it, for the sceneview camera in the “N” Panel in the 3d view, as highlighted in the screenshot.
And then also in the properties panel for your camera, as shown in this screenshot
Personally I set my default camera clipping pretty high in my startup file, due to my own proclivity to work on very large scenes, I got a little tired of changing those values for nearly every file.
Works great! Thanks 
Happy to help, have a nice day!
