Yes, l have had the same problem in my Q2. Google maps worked perfectly until recently. I suspect there is a problem with the servers. I've switch back to using the Audi default map for the time being, as Google earth has failed without warning at critical moments when I need route guidance. Will have to call Audi UK if the problem persists.
Mine has been in update mode for a few days, or I assume that is what it was, the screen was a blue part globe with a spinning icon. Yesterday it had reverted to the AUDI maps, I had to re-select Google Maps from the menu and it came back to normal, again I assume it has updated.