Unity Engine gets stuck by a Coroutine

Questions & Answers
1

My unity version is 2017.3.0f. I wrote this coroutine to load a scene asynchronously. But when I call it using StartCoroutine(LoadGame()), Unity Engine stucks (just the way an infinite loop would do). Please help me find what’s wrong with this.

   IEnumerator LoadGame()
    {
        // Create the async operation
        AsyncOperation async = SceneManager.LoadSceneAsync(SceneToLoad, LoadSceneMode.Additive);

        while (!async.isDone)
        {
            yield return null;
        }
    }
2

You gotta active the scene by manual since you are using LoadSceneAsync.

    private IEnumerator LoadSceneAsync(string scene, Action OnLoadScene = null)
    {
        yield return null;

        AsyncOperation ao = SceneManager.LoadSceneAsync(scene,LoadSceneMode.Additive);
        ao.allowSceneActivation = false;

        while (!ao.isDone)
        {
            // [0, 0.9] > [0, 1]
//            float progress = Mathf.Clamp01(ao.progress / 0.9f);
            // Loading completed
            if (ao.progress == 0.9f)
            {
                ao.allowSceneActivation = true;
            }


            yield return null;
        }
        
        
        if (OnLoadScene != null)
            OnLoadScene.Invoke();
        SceneManager.SetActiveScene(SceneManager.GetSceneByName(scene));
    }