Problem switching audio?

Phaser 3
6

ok, so my code works fine to an extent, but for some reason using multiple
'__m.PlayAudio ( )' calls, it only switches in the game. Not the title screen.

this.PlayAudio = function ( __objData )

{

    this.__objData = __objData;

    this.__snd = this.__objData.sound;
    this.__soundID = this.__objData.soundID;

    if ( typeof ( this.__objData ) !== 'object' ) { return console.error ( 'ERROR :: { Please ensure you are using an `object` for `objectData` & try again } !' ); }

    this.__soundPlaying = ( this.IsSoundPlaying ( this.__sound ) );
    console.error ( 'this.__soundPlaying :: ' + this.__soundPlaying );

    if ( this.IsSoundPlaying ( this.__sound ) === true ) {

        this.StopAudio ( this.__sound );
        this.__sound.play ( this.__soundID );

    }

    else {

        this.__sound.play ( this.__soundID );

    }

}

but to no avail.
I want it to stop the old playing sound & start the new 1.
for some reason, it’s letting the other sounds play on top of the old sound.