Zoom issue in scene view

So I am creating a 2D game, and playing around with the terrain contour. Up until about an hour ago I was able to zoom in super duper close on my terrain in the scene view, to see every detail of the terrain. But now I don't know, I must have accidentally hit something like maybe a shortcut that changed a value? Because now when I am zooming the terrain is in focus one moment, and out of focus the next.

Here is an example:



If I zoom out from here, that works no problem at all, zooming out is fine. But...if I zoom in one more mouse wheel click, this happens:



Almost like the scene camera zoomed past the terrain, but it never did that before? I was able to get way, way closer than that. I am at a loss here. You can see the background rectangle in the bottom left hand corner with the sky blue border. So it's not like the camera broke, it's just doing weird things is all.

Edit: Must be some kind of Unity bug. I was able to select one of the chunks and hit the focus key and that returned my zooming ability to normal.

 

Curious... I have this same problem.

On my end, it doesn't matter what object you select, you cannot zoom any closer. all graphics dissapear from the scene.