Just for the test I tried here with several Android devices and versions (4.0.4, 4.1, 4.2) to reproduce your issue with both Q3 release and and latest internal builds and wasn't able to, regardless of the orientation. Maybe something else is affecting the ModalView closure? Can you send me a sample page where I can reproduce your issue and help you fix it?
I offered you to open a new thread because I believe your issue is different than the artifact based one that was fixed for the Q3 release (the fix was just CSS based).
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