Are you temporarily Hiding in View with the Glasses button on the View Control bar or are you selected elements/components in the Drawing Area, right-clicking and selecting Hide in View >Elements or Categories.
Using the temporary Hide/Isolate Elements or Category only hides selected element/components in the view, but not from plotting or exporting (which is akin to plotting/printing). To hide or isolate elements/components in a view and from plotting/printing/exporting you need to Hide/Isolate permanently in the view as illustrated in the paragraph above.
Mel Persin, AIA
AEC Technology Consultant
Technology to Visualize and Realize Solutions
Modeling the Future/Drafting the Present/Building on the Past