Lighting only changes on the first scene load?

I use "UnityEngine.SceneManagement.SceneManager.LoadSceneAsync(sceneName, LoadSceneMode.Additive);" to load new scenes. However, LoadSceneAsync ONLY changes lighting the first time I call the method. Is this a bug? Or am I using the SceneManager wrong? Is there any way to "set" which loads that should load the lighting too?

 

Managed to fix the problem by finding out that when running the game in the editor one should use the UnityEditor.SceneManagement.EditorSceneManager to load and activate scenes instead. ^_^ Hope this can help someone else!