Hidden items appear photoview360 preview window & final render

I'm working with a fairly large assembly in SolidWorks 2012 and creating some renderings. I have hidden some components in the model so I can see just a few parts but when I create the rendering, in both the final and the preview window, some but not all of the hidden components are visible. Is this a bug or some setting I need to change?

SolidworksPhotoview 360