Il probably make you really happy then 
Its working great in the packed game just need a bit of modification.
Go to your packed game folder > Engine
1/Create a new folder called Config if there is no folder like that
2/Create new notepad and add this in
[/Script/Engine.RendererSettings]
r.LightPropagationVolume = 1
Save it as DefaultEngine.ini
And It will work like a charm
Let me know if you have more problems
Regards
- Adriano
EDIT: If you have a problem with occlusion not working. go to your project settings and disable D buffer decals…after restarting should work oke