I might be a newbie here, but how come new firmware is released but not published in supprt site? A support ticket should be filed for this to get answer?? Can someone explain how tis works in iConnectivity?.
Issue solved, thanks to support: " After some additional testing I have discovered the issue.
You need to lower the USB Device Jack channels to 2.
Garageband cannot handle anymore than 2 channels with inter-app use."