I did look in to this and could not find anything wrong. If you want further investigation please try to find a more reliable way to reproduce the problem, or more clearly describe the exact steps and timing (perhaps a video would help), and file a new bug since this report is now closed.
Ashley hi, problem is there, very apparent and very easy to reproduce. Happens on every iOS device i touch.
Just try for some minutes and you will see.
Out the game, into the game, out the game, into the game...
If You really can't reproduce it. i will film it sometime then...
Thanks