The 3D view defaults to the last camera used, "whacked-out" or not.
The fastest way to fix this is to place a camera in plan where you want it, using the camera tool, and not attempt it using the new-fangled ways. (Just bought first pair of Carhartt bib overalls (architect's black) and trying to use hayseed lingo. Carving a corn cob pipe at night to relax.)
Select that camera in plan and go to 3D.
Dwight Atkinson