I keep encountering a display issue with point clouds in Rhino 6. If I try to setup a view that is perfectly horizontal and looking along the X or Y axis the density of the point cloud gets destroyed. If you adjust the view so that its slightly rotated about the Z axis it looks fine. Its also fine if you use a top or bottom view.
This image was captured looking in the x direction:
And this 1 rotated about Z by 45 degrees:
The actual data is fine if I spin around and look from other locations or different directions as demonstrated above. Its also fine in other software. I’m using Rhino 6 version 6.3.18090.471