Meshes disappear on android ( and editor )

Hi, I have noticed an issue recently where all meshes in game disappear on Android.

This also happens in the editor if I switch to the android platform. I noticed this recently when trying to improve performance, a long time back we had added a bunch of image effects, and have been removing them little by little. When the last one was removed from the camera my meshes started disappearing.

If I add the image effect back ( SSAO in this case, but can be Noise and Grain or Vignette, doesn’t really matter ) the meshes are rendered.

The shader used on my objects is the standard unity shader.

Any help would be appreciated.

Thanks

Ok so it seems if I set Edit->Graphics Emulation->No Emulation the problem disappears in the editor, meshes are rendered with or without any image effects. which seems to indicate some incompatibility.
I cannot reproduce the problem in a new project.

I am guessing something somewhere is causing this problem, but for the life of me I cannot figure out where it is coming from. The android device I am testing with is a Nexus 5.
I have checked my light, my mesh, my camera and cannot see anything out of the ordinary.