Sometimes it works and sometimes it doesn’t for me. When it doesn’t work, what I do is, I make the clipping plane on the view that I wan’t it to work. So If I want a top view, looking at the 2nd floor, first I’ll make a clipping plane on the top view. Then I’ll toggle the clipping plane on the perspective view to the 2nd floor. This should show the section on your top view, but not on the perspective.