Destroy the game object to avoid multiple creations

Author: Pim De Witte

UnityMainThreadDispatcher.cs

@@ -66,7 +66,9 @@ void Awake() {
 		if (_instance == null) {
 			_instance = this;
 			DontDestroyOnLoad(this.gameObject);
-		}
+		} else {
+        Destroy (this.gameObject);
+    	}
 	}
 
 	void OnDestroy() {