Cannot load scene: Invalid scene name (empty string) and invalid build index -1

[unreal knoll]

Fishnet Version: FishNetworking.4.2.2R.Pro
Unity Version: 2022.3.26f1
Transport: Tugboat

    [Command]
    private static async UniTask LoadSceneDebug(string sceneName)
    {
        await UniTask.WaitUntil(() => NetworkConditions.IsManagerReady<NetworkSceneManagerFinder, NetworkSceneManager>());
        
        Debug.Log($"Load {sceneName} Scene");
        NetworkSceneManagerFinder.Instance.LoadExistStackedSceneRpc(NetworkSceneManagerFinder.Instance.GetSceneHandleBySceneName(sceneName));
    }

When I call LoadSceneDebug(), I got error on server side "Cannot load scene: Invalid scene name (empty string) and invalid build index -1"

it got fixed with this change

        var sld = new SceneLoadData(handle, sceneName) // Add sceneName string to parameter
        {
            Options =
            {
                AllowStacking = true,
                LocalPhysics = LocalPhysicsMode.Physics3D,
            },
            ReplaceScenes = ReplaceOption.All
        };

By the way, shouldn't it be possible to load a scene using only the scene handle number? Why is there an option to pass only the handle as an argument in sceneLoadData()?

[mossy fiber]

It should be yeah, that's strange 🤔

[unreal knoll]

The issue still isn't resolved: SceneManager.LoadConnectionScenes() loads a new scene for each player instead of placing the player into an existing scene with a matching handle.

[mossy fiber]

The initial scene is loaded with the AllowStacking option enabled, right? Can you try getting the scene handle manually from an object inside that scene and then loading it? Perhaps the scene from the event is incorrect

And last option which should work is using a Scene reference instead

[unreal knoll]

It got solved by relaunching Unity Editor.