I have been working on a building model for some time now and started expanding the site work today. It's all simple slabs representing lawn, parking spaces and a road. When I go to 3D view one edge of the site is inexplicably cut off. It ends as if it is cut with a section tool or elevation tool (it's not). Scrolling out to expand the view doesn't change anything. The end of the model is simply sliced off and I can't find a way to expand it to include all of the model. In plan view nothing is amiss. It all shows normally.
Thank you all for any suggestions.