MidiJack not working after scene change

[alanpq]

Whenever I try to use SceneManager.LoadScene(), and then in the new scene try using MidiMaster.GetKeyDown(), nothing happens. There are no errors of any kind, and no logs. Do I need to re-initialise it somehow?

[mrjdbruce]

is there any update on this issue? I'm having the same issue.

[keijiro]

I can't reproduce the issue. Could you provide a minimum project that reproduces the issue?

[alanpq]

Ok, it turns out that the issue only happens when you check for midi input and switch scenes in the same method (I think?). Here is a project with the issue: https://github.com/cakyman/MidiJackIssue

[keijiro]

Thanks for providing the project. I'll look into it later.

[cansik]

I have the same issue with version v5.6.

Just checking for key input. After one scene restart, the Midi Key won't be clicked anymore.

if (MidiMaster.GetKeyDown(noteNumber))
    StartGame();

[cansik]

You are keeping the MIDI Updater object alive:

public static void CreateGameObject(Callback callback)
{
    var go = new GameObject("MIDI Updater");

    // this is the line which causes the problem!
    GameObject.DontDestroyOnLoad(go);

    go.hideFlags = HideFlags.HideInHierarchy;

    var updater = go.AddComponent<MidiStateUpdater>();
    updater._callback = callback;
}

If you uncomment this line, the midi updater will work after changing the scene!