Sometime last week my CTRL+TAB behavior changed. I used to hit CTRL+TAB, release, then I would be in my previous document tab. Now I hit CTRL+TAB, release, and the nav window is still open requiring me to hit enter.
I have tried restarting ssms and rebooting several times. This is an issue in both SSMS 2012 and 2014. It is not an issue in Visual Studio (2010 and 2013).
In all VS 2010/2013 and SSMS 2012/2014 the hotkey Ctrl+Tab (Global) is set to Window.NextDocumentWindowNav. Though I have tried modifying it then putting it back.

CTRL+F6 works the same as it always has.
Is there a way to get the CTRL+TAB behavior back?