I have tried all fixes mentioned in this post and other related posts. I have cleaned out all of the work I did on my website, and uploaded all of the sample data and it still did not work. I followed the installation directions exactly….nothing worked. I feel like this is a waste of money and time and I’m moving on.
I disabled all plugins. I also made sure the slug on portfolio is “portfolio”. I also chose “Post Name” for Permalinks selection. None of the “Standard” portfolio items will display (however, lightboxes work).