I ran into a issues for my application built using the Dominoes sample. I changed the screen orientation to "Portrait only" mode. On press of "Clear" button, I redirect user to another website. When user comes back to camera view (by pressing the back button), the dominoes are no longer visible. I also noticed that the camera input is shown in Landscape mode instead.
This problem is reproducable on "LG Optimus Black P970" devices only. I tried to replicate this on Sony Xperia, Samsung Galaxy S2, HTC One - they all work just fine.
I'll happy to provide code snippets, or logs for this.
In deep mess since this is delaying the launch of a customer product.