How do i get audio to play when scrolling though the main menu and pause menu?

Im replacing the audio for the ‘Platformer’ game which is an unreal engine example game. All the other sounds are working but the sounds for the UI menu does not play.

I haven’t deleted any of the sound cue’s, just the audio Wav files have been deleted. When adding the audio onto the Waveplayer node the sound will play when the ‘Play Cue’ button is pressed but will not inside the game.