Handheld.PlayFullScreenMovie() Not playing audio.

Hello people!

I can't figure out why doesn't the video's Audio play. Tried it on an Intro & on an Outro video. None of them seem to play the audio, just the video. Any idea why does this happen? I googled it, but all I found was "same here..." Here's my code, it's pretty simple:

public class PlayMovie : MonoBehaviour {

 void Start() {
     StartCoroutine(MyCoroutine());
 }

 IEnumerator MyCoroutine()
 {
     Handheld.PlayFullScreenMovie("INTRO.mov", Color.black);

     yield return new WaitForEndOfFrame();
     SceneManager.LoadScene("BetaTest");
 }

}