It seems the portfolio is working perfectly. The main reason it gave you 404 was you’ve updated the slug & didn’t flush the rules of permalink. After you save the permalink again it’d work & it’s working right now.
Hopefully you liked our theme while using & please do rate us on themeforest if possible.
Regards

If you go to this portfolio page you can see the url or slug is written what you’ve provided in theme option: http://dev.dynamicscapital.com/portfolio/500-s-inglewood-st/
About Teriz Portfolio it’ll not change in WordPress dashboard. It’ll be like that & you’ll be able to change the url or slug only. Hopefully you can understand.

Both are same. You’re talking about the name Teriz Portfolio on WordPress dashboard isn’t it? That can’t be change. But you can update the slug or url of portfolio to load just like you did on theme option. Did you get it now? Teriz Portfolio is written only on WordPress dashboard isn’t it, which is not changeable. Let me know if you’ve anymore query or not.

Ok now I got it. The menu in dashboard portfolio is not made by us it must be coming from any 3rd party plugin. This is the page where our portfolio recides: http://dev.dynamicscapital.com/wp-admin/edit.php?post_type=teriz_portfolio

If you go there & try to open a page you’ll see it’s not loading a 404 page instead it’ll load the page properly. You don’t need to use that portfolio or 3rd party plugin integration. You can use theme default portfolio system which is Teriz Portfolio. Hopefully this time you’ll understand.