Nevermind my issue is resolved. Try going to “customize”. check and see if your posts page is directed to the page you’re trying to assign the portfolio to. If it is, change it to a different page. See if that helps.
I am also having difficulty with this. I already have my homepage done, but when I go to make a “work” page it won’t show. It says “sorry, no results were found”. The template for the work page is “portfolio grid”. I made a few portfolio types and some items for each and checked off the type i wanted them in. Nothing happens.