I've seen a few threads regarding this but they all seem to be fairly old.
I'm using Unity 5.2.1 and Vuforia 5.0.5.
In my scene I've got an ARCamera, Image Target and a Cube on the target to augment. When I test it on the Editor it works perfectly.
However, when I push to an Android device, it will augment the Cube but the camera view is just black. I've seen threads saying change the Graphics API to OpenGLES 2.0 (as opposed to 3.0) but that doesn't make a difference, neither does setting it to Auto.
Does anyone have a solution to this?