Spatial Sound, Attenuation distance not working?

I’ve looked at some vids and posts but no matter what I try I cannot change the Attenuation Listener.

What I’m trying to achieve … (At the moment I’m working with a Wav I’ve just dragged into the world and the override is enabled) I want the sound to play when my Character gets near to it. For my setup I have a Character that is an AI Controller with a Pawn as the Camera I’m pretty sure using the Player Controller.

Is there maybe anything in the Project Settings?