I have a 3D Solids Model of a building with practically all of the components (walls, floors, windows, doors, columns , beams, roof parts, etc,) composed of blocks including nested ones. Using commands like 3DOrbit, Dview, View, etc. I can view my building both from the "exterior" of the building & the "interior" of the building. I have interior & exterior perspectives as saved views. I have defined Scenes (combo of a View & Light(s))

I can successfully Render the exterior Scenes, although the more parts of the model I Render, the more likely I get a failed Rendering attempt. But every attempt at Rendering an interior Scene causes my computer to freeze up (the interior Scenes show even less of the model & therefore should cause fewer problems than Rendering the exterior Scenes.

What is causing this failure to Render the interior Scenes?