When I have the Youtube IFrame player be used on a page, once i navigate back to my previous page the bottom navbar (using speeddial package) is lowered. I don't know what might be causing this but i know its the Youtube player because i tested it by removing the YT player and the bottomNavBar was fine.
Without Youtube Iframe Player Scaffold
With Youtube iFrame Player Scaffold
Let me know what code you would like to see as its too large to place the three pages on this post atm.