Issues with loading Addressable scene for second time

Unity Engine
1

My project contains a number of repeatable minigames, each of which have their own scene. All of these scenes are Addressable, and loaded from remote storage.

The issue I’m running into is that I can call Addressables.LoadSceneAsync[ for a given minigame, play it to completion and call Addressables.UnloadSceneAsync[. All of this seems to work well. But when I return to the same minigame, and therefore attempt to reload the same scene (with Addressables.LoadSceneAsync[), I get the following error:

Scene 'ExampleMinigameScene.unity' couldn't be loaded because it has not been added to the build settings or the AssetBundle has not been loaded.
To add a scene to the build settings use the menu File->Build Settings...
UnityEngine.ResourceManagement.AsyncOperations.AsyncOperationBase`1:<.ctor>b__26_0(AsyncOperationHandle)
DelegateList`1:Invoke(AsyncOperationHandle) (at Library/PackageCache/com.unity.addressables@1.2.4/Runtime/ResourceManager/Util/DelegateList.cs:69)
UnityEngine.ResourceManagement.AsyncOperations.GroupOperation:OnOperationCompleted(AsyncOperationHandle)
DelegateList`1:Invoke(AsyncOperationHandle) (at Library/PackageCache/com.unity.addressables@1.2.4/Runtime/ResourceManager/Util/DelegateList.cs:69)
UnityEngine.ResourceManagement.ResourceProviders.ProvideHandle:Complete(IAssetBundleResource, Boolean, Exception)

This would seem to suggest that LoadSceneAsync will only work once for a given scene before the app needs to be restarted. Can anyone confirm similar issues or potential resolutions?

Note: I get the same results in “Packed Play” mode in the editor, or on a device. It also doesn’t scene to matter if I load the scene as single or additive.

How to reload addressable without restart game?
2

Hey @DanMcElroyHuuuge that is strange. You may be hitting a race condition once your bundles are cached in regards to your scene load. What platform are you seeing this on?

3

Hey David, thanks for the reply. I’m seeing this on Android, and in the editor (Windows). Have not tried any other platforms so far. A race condition is possible, but even if I wait for over a minute between scene unload and reload I encounter the same issues (these bundles are max. 8MB).

4

hmm… ok nothing about that really sticks out to me. If you don’t mind filing a bug with Unity and then posting the case number here so I can look it up more easily I’d appreciate it. If you have a small-ish project you can attach to the bug report that would be a huge help.

5

I don’t know if this will solve your problem, but for me I am using interfaces and what I was encountering when trying to load the addressable a second time was that the reference to an interface was not set to null when the scene was unloaded. So now I am setting the interface reference to null before the scene is destroyed and released, which now I can load the scene a second, third, etc. time.