MediaBay No Sound (Already Deactivated ControlRoom)

Good night to everyone here,

As tilte, I get in trouble when using MediaBay.
Did turn off the Controlroom. Actually it works fine until this night. I also reinstall C7 (not all content but the main Cubase and its updates).
And I test the some other ones like the LoopBrower, they all playback well.

Anyone has some advice how may I repair this problem?