Since the latest updates to CC-GTV it has started freezing. To be specific the remote (all remotes) no long work, none of the buttons on the remote get any reaction from the system. This appears to happen when you don't touch the remote for an hour or so.
I had this issue with Bluetooth remotes. I had to unpair the remote and use IR only.
I know you mentioned all remotes, have you tried new batteries?
Which version specifically?
Can this have anything to do with power saving options on the TV? Like turning off BT after an hour or so?
3 devices and none are doing this.