AutoCad :: Viewport Not Visible Or Selectable?

DWG has viewports on layout tabs, but the viewports are not visible. The viewport can be open, edited as established, but if you pan or zoom, the paperspace layout moves and not model space. In model space, viewport frame does not highlight.

All layers on, unfrozen, and plottable.

Have done extensive internet search to find soution, found others with same problem, have found no one with a solution.

Not extremely CAD literate, basically self taught, but until this problem, I've been knowledgeable and resourceful solving problems.