Something weird is going on in the Unity scene view: the bottom of the view is black, obscuring everything (including the grid). The region gets larger if I zoom in. There are no GameObjects to click on in the void region.
What's going on? A web search finds many forum posts with people having the same problem, and suggestions that it is a bug which has gone unfixed for at least ten years.
Help!
@MBoffin I tried changing the clipping plane, but any changes instantly reverted. (This may be because there's a Cinemachine VCam involved, controlled by elaborates scripts from the third party TopDown engine.)
I wasn't having this problem before. I haven't messed with the camera in weeks if not months. I wonder what changed.