title: MediaPlayer not always playing audio in UWP app
body: <p>I'm working on a UWP app (running on a Raspberry Pi running Windows 10 IoT), and I need to play sound at certain times each day.  I initialize a MediaPlayer and StorageFile by calling the following method:</p>
  
  <pre><code>private async void prepPlayer() {
              file = await StorageFile.GetFileFromApplicationUriAsync(new Uri("ms-appx:///audio.mp3"));
              player = new MediaPlayer();
  
  }
  </code></pre>
  
  <p>and then I call it when I want audio played by calling the following method:</p>
  
  <pre><code>public async void playAudio(){
              player.SetFileSource(file);
              player.Play();    
  }
  </code></pre>
  
  <p>The problem I'm having is that after a few times of playAudio getting called, it quits playing the audio.  I can't reproduce this with the debugger running.  Any ideas?</p>