The Navigation arrows in Activities for Tasks does not appear to function.

I have had a quick look through the settings and do not believe I have seen any options to change this.

This is more of a quality-of-life issue/improvement as it would improve efficiency and user-experience when we have to run through x amount of tasks in one go.

The navigation button I am referring to is this one: 

I am in Activities showing Only Tasks,

I have tested this on requests with multiple open Tasks to see if it that navigation is set to only that particular request but that has also yielded no functionality.

please feel free to prove me wrong and make me look like a fool if someone has a solution or a setting (that I maybe do not have access to)