Android Tablet - FAIL: Landscape-Portrait Flip

Madam / Sir,

I like Professional Theme very much and I'm testing it right now against its strongest contender Business Responsive Theme. (Bamboo was once the strongest contender but Business Responsive Theme is too mighty to be denied the second [or even the first?] place compared to Professional Theme).

Testing it on a Samsung Galaxy Note 10.1 (GT-N8000) running on Android 4.1.2 shows that Professional Theme has a weakness when flipping the display from landscape to portrait as can be seen in the screenshots "Landscape.png" and "Portrait.png".

This behavior occurs with Opera Mobile Browser, Maxthon Browser and Dolphin Browser as well as the "native" Android Browser named "Internet".

Business Responsive Theme doesn't show this behavior. So there must be a way to keep it from happening.

Best regards,
CatsAreNice