5.3.5p6 bug loading scenes from asset bundle

@Vincent Zhang After I upgraded from 5.3.4p5 to 5.3.5p6, scenes in my asset bundle will no longer load, giving me the following error:

Happens on device and in the editor, but I don't get any additional info in the editor.

I saw someone else reported the same issue here: http://answers.unity3d.com/questions/1206483/load-scene-from-assetbundle-file-in-534.html

 

Just to confirm, I ran my game in the older Unity 5.3.4p5, and the scenes load just fine with no other changes.

 

Either the behaviour was changed between patch releases (unlikely, but who knows) or this is a bug ...

What does your asset bundle contain? how are you building it and how are you loading it ?

 

Well, they don't put only bug fixes in patch releases, unfortunately. And, if the only thing I changed was the Unity version running the same code with the same bundles, how can that be anything except a Unity bug?

 

It would be best if you reported this as a bug along with a simple repro project...

 

Any updates on this? I'm running into the same issue with 5.3.5p7.

 

It looks like you need to use a separate API to load scenes from asset bundles: http://answers.unity3d.com/questions/915566/load-scene-from-asset-bundle-1.html

You can use:
AssetBundle.isStreamedSceneAssetBundle

...to determine if you're dealing with a scene asset bundle, followed by:
bundle.GetAllScenePaths();

...to get the scene paths.

Cheers.

 

Thanks for the info, but, in my case, that's already how my scenes bundles are handled.

As I mentioned, it works fine in Unity 5.3.4p5 without changing any code or bundles. Simply running the same project on 5.3.5p6 will break it.

 

Unrelated but upgrading to 5.3.5p6 and p7, breaks audio for me, when playing Audio files in Editor dont even hear anything and tried a few different ones.. no response from Unity devs..

 

Jason, did you manage to find a solution? I have the same problem here, worked fine in Unity 5.2.3, now broken on 5.4.3

 

I haven't had a chance to fully pursue a solution, other than to use the Unity version that works. It's not critical that I upgrade right now, so I'm trying not to rock my progress boat with new problems.

 

andersemil and jasonMcintosh, the solution is to just not call LoadAllAssets or any method like that on a streamed scene AssetBundle.
Go directly from LoadFromCacheOrDownload to LoadScene, like:

Code (CSharp):

1. WWW www = WWW.LoadFromCacheOrDownload(url, 1);
2. yield return www;
3. SceneManager.LoadScene(sceneName, LoadSceneMode.Additive);

 

You're right! That is the workaround. Thank you!

I still remain convinced that this is either a legit bug or some intentional change in functionality without any public notice.

 

I just ran into the same problem after upgrading to 5.3.6. Not calling LoadAllAssetsAsync() fixes the problem, but I don't think this change is intentional.

Could we get any feedback from a Unity dev?