Elevation drawing board objects disappear out of frame

[Anonymous]

In my elevation view I don't have a frame. and it looks like if I drag an object to far up I it disappears. I have set project 0 to 0, and my sea level is at 20 000mm for some reason. which meant that everything I have drawn at 70 000mm above project 0 disappears in my elevation view

[Laszlo Nagy]

Is there a Vertical Range defined for your Elevation?
If it is then it can cause elements to disappear (not displayed) in the Elevation if they are higher than the upper limit of the Vertical Range.