Hi Theodore,
I am not catching up with what the problem exactly, not much information provided. However, Regarding your version of Mendix studio pro, once you run your project locally you can click to view the app locally ( on 8.17v you will see this : http://localhost:8080/login.html?profile=Responsive) to double check, go to navigation and choose the Default Home Page to what you are looking to view on your local host. I hope I shared what you need. I would appreciate extra information on the issue to be able to share the solution if I have one.