Post Process Ambient Occlusion not working with LWRP

I just switched my project over to the new LWRP in Unity 2018.1.
I can't seem to get the ambient occlusion to work with the post process volume.

Here is an image where the ambient occlusion should be blown out.

and another image with a lighter setting, still no difference.

To show that the post process is working, I'l turn off the Bloom settings.


That's it really. AO just doesn't work. This is on the LWRP example map also, it doesn't work on my personal project either.

Help please

 

Give this a try: https://github.com/beinteractive/LWRPAmbientOcclusion