Oshine Portfolio Navigation

Okay so I am in the middle of a project and I am using the Portfolio bottom navigation. I want the arrows to navigate through the images within the portfolio it self, but instead it skips to the next category in the portfolios list. Has anyone tried to do this and if so were you successful? How? When I click the option to traverse within the category the arrows just plain up disappear and im not sure what is causing this, if its a bug on my end, the themes end or just not possible to do with this theme at this point in time.