M-Audio Fast Track Pro doesn't work with OS X Mavericks Garageband or MainStage 3
I used to be able to use MainStage 3 and Garageband with my M-Audio FastTrack Pro with no problem. Then, when I upgraded to OS X.9 Mavericks, it doesn't work. Avid (who now supports the FastTrack Pro) recently came out with an updated driver that supposedly upgrades for OS X.9 Mavericks (http://avid.force.com/pkb/articles/en_US/Download/Fast-Track-Pro-Drivers), but even after downloading/installing the driver and updating the device, I still can't get it to work with Garageband or Main Stage 3.
It seems that the software sees the M-Audio FastTrack Pro USB, I even see an audio signal in both MainStage 3 and Garageband for my guitar or microphone input, but there is no output sound from the FastTrack Pro to my PA system other than the analog sound (no sim amps or vocal effects work).
Anybody been able to solve this problem?
MainStage, OS X Mavericks (10.9)