To all those with communication problems. Blizzard made a change were addons that want to use the communication channel have to register for it. Jamba uses the Ace3 library for its communications and the Ace3 library has been updated for Blizzards change.

Jamba has the latest Ace3 libraries included in it; so if you are using Ace3 standalone, I recommend removing it.

If you are still having problems, try running with all other addons disabled except Jamba (and the ISBoxer addon if you use that).

If you are using the private Core: Communications channel and having trouble, try turning that off; the settings is under jamba -> advanced. There may be a bug relating to the private channel and communication; I'll investigate tonight.