Share your experience!
Could you please provide us with some screenshots or pictures?
http://talk.sonymobile.com/t5/FAQ/How-to-take-a-screenshot/m-p/348046#U348046
you are pointing your camera towards the ceiling.
while you are in AR mode point the camera towards the floor (towards some empty area) and pan the camera from left to right or right to left while keeping it steady.
This should give you the intended result.
I had the same problem initially but then i realized it was my mistake.