private void Start()
 {
     // Get the ServerSessionsTracker to use later.
     // Note that if this processes takes the role of a secondary client,
     // then the sessionsTracker will always be null
     if (SharingStage.Instance != null && SharingStage.Instance.Manager != null)
     {
         sessionsTracker = SharingStage.Instance.SessionsTracker;
     }
 }