void CleanupScene(SubScene scene)
{
// Debug.Log("CleanupScene: " + scene.SceneName);
scene.CleanupLiveLink();
var streamingSystem = World.GetExistingManager <SubSceneStreamingSystem>();
foreach (var sceneEntity in scene._SceneEntities)
{
streamingSystem.UnloadSceneImmediate(sceneEntity);
EntityManager.DestroyEntity(sceneEntity);
}
scene._SceneEntities = new List <Entity>();
scene.UpdateSceneEntities();
}