fix problem with scene switching.

get scene by name looks through scenes loaded or scenes being loaded, therefor the scene will be fetched after loading is initiated.

Author: jaglitegrann

MLAPI/NetworkingManagerComponents/Core/NetworkSceneManager.cs

@@ -56,8 +56,9 @@ public static void SwitchScene(string sceneName)
             CurrentSceneIndex = sceneNameToIndex[sceneName];
             isSwitching = true;
             lastScene = SceneManager.GetActiveScene();
+            
+            AsyncOperation sceneLoad = SceneManager.LoadSceneAsync(sceneName, LoadSceneMode.Additive);
             nextScene = SceneManager.GetSceneByName(sceneName);
-            AsyncOperation sceneLoad = SceneManager.LoadSceneAsync(nextScene.buildIndex, LoadSceneMode.Additive);
             sceneLoad.completed += OnSceneLoaded;
 
             using (PooledBitStream stream = PooledBitStream.Get())