To clear non-volatile cache, follow this procedure:
Go to channel 1, Directv Intro
Wait a minute or two, for all overlays and popups to clear off the screen
From the remote, enter the buttons in sequence: Red, Red, Blue, Blue, Yellow, Green
On the bottom left of the screen, you will see the text message that non-volatile memory has been cleared. Pay attention or you will miss it.
I have no idea if this will resolve your CC problem; but I dearly hope it helps. It cannot hurt. This is a trick I do periodically because it appears to make the system response much faster.