SceneManager.LoadSceneAsync and lightmap/GI issues (5.3.0f4)

Hi,

I posted an issue in the 5.3 beta forum:
http://forum.unity3d.com/threads/scenemanager-loadsceneasync-and-lightmap-gi-issues-5-3-0f2.370366/

Just downloaded and tested the new 5.3.0f4 release, and unfortunately the issue is still present.
It does look fixed in the editor, however after making a standalone windows build it's still there I'm sorry to say.

 

Still broken in builds 5.3.1p1 and broken in the editor and builds in 5.4b1

 

Any fixes at the 2017.2?