Question LoadSceneAsync(activateOnLoad = false) does not work

Update
Any code with LoadSceneAsync(activateOnLoad = false) does not work, and I have tested 3 version, check it at #2.
Just like this, the scene will be activated when it has been loaded.

private void Awake()

{

var loadSceneHandle = Addressables.LoadSceneAsync("MenuScene", LoadSceneMode.Single, false);

}

========================================================================
I just update Addressables from 1.8.5 to 1.16.12.

And I found when I call a Addressables.LoadSceneAsync() function before Addressables.InstantiateAsync() function, it will activate the scene even though I set activateOnLoad = false.

Just like below code

private void Awake()

{

    loadSceneHandle = Addressables.LoadSceneAsync("Scene", LoadSceneMode.Single, false);

    Addressables.InstantiateAsync("GameObject", Vector3.zero, Quaternion.identity);

}

So I wonder if this is my usage error or a bug.

System version: macOS 11.0.1
Unity version: 2019.4.15f1c1
Addressables version: 1.16.12

How to reproduce:
1. New a scene and add the code Above to a gameobject
2. make a anther scene and a gameobject Addressable
3. Use the code to Load the scene and Instantiate the gameobject

 

I degrade Addressables from 1.16.12 to 1.8.5 with Scriptable Build Pipeline from 1.15.1 to 1.7.3, and activateOnLoad = false works.

So:
Addressables 1.8.5 with Scriptable Build Pipeline 1.7.3, activateOnLoad = false works.
Addressables 1.16.10 with Scriptable Build Pipeline 1.14.1, activateOnLoad = false does not work.
Addressables 1.16.12 with Scriptable Build Pipeline 1.15.1, activateOnLoad = false does not work.

And version 1.16.12 is verified by Unity 2019.4.15f1c1

 

By the way, the param will be worked when called after InstantiateAsync() function.

like this:

    await Addressables.InstantiateAsync<LocalizationManager>("GameObject", Vector3.zero, Quaternion.identity);

    var loadSceneHandle = Addressables.LoadSceneAsync("MenuScene", LoadSceneMode.Single, false);

 

Alright，I have checked the document of new version. And it says activateOnLoad = false will block Any asynchronous request until the scene is allowed to activate. So it's the reason that activateOnLoad = false does not work? I just put the LoadSceneAsync function after InstantiateAsync function to make activateOnLoad = false works now. But I want to know the real reason.

Waiting for reply, thanks.

 

I'm having the same problem ... activateOnLoad=false gets completely ignored... I'm on Addressables 1.16.15 and I can't find a workaround to this problem other than just designing my game around activateOnLoad=true which isn't the optimal solution .

 

I load the scene as the last one after all other loads with activateOnLoad = false to make it work. But do not know the real reason.

 

Why hasn't this been fixed until now?

 

I tried to override SceneManagerAPI but it doesn't helped. So, it looks like the problem is inside SceneManager!!!

Code (CSharp):

1.     internal class MySceneManagerAPI : SceneManagerAPI {
2.  
3.         protected override AsyncOperation LoadSceneAsyncByNameOrIndex(string sceneName, int sceneBuildIndex, LoadSceneParameters parameters, bool mustCompleteNextFrame) {
4.             var result = base.LoadSceneAsyncByNameOrIndex( sceneName, sceneBuildIndex, parameters, mustCompleteNextFrame );
5.             result.allowSceneActivation = false;
6.             return result;
7.         }
8.  
9.         protected override AsyncOperation UnloadSceneAsyncByNameOrIndex(string sceneName, int sceneBuildIndex, bool immediately, UnloadSceneOptions options, out bool outSuccess) {
10.             var result = base.UnloadSceneAsyncByNameOrIndex( sceneName, sceneBuildIndex, immediately, options, out outSuccess );
11.             return result;
12.         }
13.  
14.     }

 

Hey we managed to fix our issue thanks to your message .

So yeah it's almost like if "activateOnLoad" was setting a global variable, and starting any asynchronous request during the loading would reset that variable value. Weird.