I have been adding 3d models to the library. When edit this one particular cell in 3D view all that is displayed is a large blue number 1. This number one is in the cell before I add the model. When I add the model it displays fine until I fit the view. Then the 1 is displayed again. When I exit the cell the layout shows the default blue box for the part. The cell displays correctly in 2D view.
Any Idea what is going on and how to correct this?