audioSource.isPlaying returns false on indirect editor pause

The audioSource.isPlaying is returning false on the same frame that the application is indirectly paused in the Editor. This is occurring when using Debug.Break() or when causing the Editor to loose focus.
When manually pressing the pause button in the Editor, the issue does not occur.

Using Unity 2017.1.1f1.

Code (csharp):

1.  
2. using UnityEngine;
3.  
4. public class testScript2 : MonoBehaviour {
5.  
6.     public AudioSource audioSource;
7.     public bool doBreak;
8.  
9.     void Start()
10.     {
11.         audioSource.loop = true;
12.         audioSource.Play();
13.     }
14.  
15.     void Update ()
16.     {
17.         if (doBreak) {
18.             doBreak = false;
19.             Debug.Break();
20.         }
21.  
22.         if (!audioSource.isPlaying) {
23.             Debug.LogError("audioSource reporting it is not playing");
24.         }
25.     }
26. }
27.  

It sounds like a bug.
Can anyone confirm?

 

I see the same thing in the editor.
As a work around, I use MonoBeheavior.OnApplicationFocus to keep track if the game is in focus or not. If it's not in focus, do not check audioSource.isPlaying, and you should not see the error logs.

 

Also running in to this, though it looks like it might be intentional, according to the docs for isPlaying:
https://docs.unity3d.com/ScriptReference/AudioSource-isPlaying.html

"Note: AudioSource.isPlaying will return false when AudioSource.Pause() is called. When you use AudioSource.Play() again back, it will return true."

I guess when you pause in the Editor, it also calls AudioSource.Pause() internally

millerlyte87 has a good suggestion, or you could either use a boolean manually store the actual isPlaying status, and only set to false when stopping the audio, or, set the volume to 0 when stopping and check that (assuming Pause() isn't being used).