Black Viewport in Perspective view only

This happens in every rendering mode as long as I’m in perspective view. I can see the orientation widget in the lower left, but nothing else.

I saw some older posts about this problem on answerhub. One was unresolved and the other gave instructions to update graphics drivers, which I have done.

All Orthographic views work as intended, but perspective or any other 3D camera view (using actors placed in the level) render a solid black.

I’ve had another user check on their local machine and they have the same problem, so I know it’s project specific. I’ve tried creating a new level, and the problem persists. Only when I make a new project is the issue resolved.
So, at least we know it’s not an engine level problem.

Please let me know if there’s any known resolution.
Thanks!

Solved!
Contained in DefaultEngine.ini
My NearClipPlane was a negative number.
Solved it by changing it to 1

[/Script/Engine.Engine]
NearClipPlane=1