As seen in the screenshot above.

I let all my DF rep activ and hide all the others.
Work for all, but when i finish hiding MoP rep, this one appear and is not hiding even if done correctly.

You'll probably find its happening even without the addon. This is with the addon disabled, thats happening to Horde and Cataclysm and a few others to me:

This might fix it. I wasn't able to get my Mists of Pandaria to display like yours though.