How To correctly manually Update the PlayableDirector

I'm using this method of updating my Playable director manually:

Code (CSharp):

1.  
2. [ExecuteAlways]
3. public class DirectorUpdater : MonoBehaviour
4. {
5.    public void OnEnable()
6.    {
7.        UnityEditor.EditorApplication.update += AdvanceDirector;
8.    }
9.  
10.    public void OnDisable()
11.    {
12.        UnityEditor.EditorApplication.update -= AdvanceDirector;
13.    }
14.  
15.    public void AdvanceDirector()
16.    {
17.        PlayableDirector playableDirector = GetComponent<PlayableDirector>();
18.  
19.        if (playableDirector.timeUpdateMode == DirectorUpdateMode.Manual &&
20.            playableDirector.state == PlayState.Playing)
21.        {
22.            playableDirector.playableGraph.Evaluate(0.05);
23.  
24.            if (playableDirector.time >= playableDirector.duration)
25.            {
26.                playableDirector.Stop();
27.            }
28.        }
29.    }
30.  
31.    public void LateUpdate()
32.    {
33.        AdvanceDirector();
34.    }
35.  

It seems to almost work as intended, the only thing i noticed that is still off is, that Markers don't trigger their notifications reliably anymore in EditMode. (As soon as i switch back to GameTime Update, the notifications trigger as expected)

Code (CSharp):

1. public class MyMarker : Marker, INotification, INotificationOptionProvider
2. {
3.     public PropertyName id => "MyMarker";
4.  
5.     NotificationFlags INotificationOptionProvider.flags => NotificationFlags.TriggerInEditMode;
6. }
7.  
8. public class MyNotificationReceiver : MonoBehaviour, INotificationReceiver
9. {
10.     public void OnNotify(Playable origin, INotification notification, object context)
11.     {
12.         Debug.LogWarning("Triggered Marker");
13.     }
14. }
15.  

Is this a bug i should report, or is my manual update approach flawed?

 

I just found this, which more or less explains the problem