There is a workaround to this issue using the new Aggregate Device tool in OS 10.4. Follow these steps:

1. Without your BIAS software running go to Applications>Utilities and launch the Audio MIDI Setup application.

2. Go to the Audio menu and select "Open Aggregate Device Editor"

3. Click on the "+" button to the left of where it says "Add and remove aggregate devices on your computer"

4. In the bottom half of the window click the "Use" checkbox for both of the items listed as your USB device (they should show up as two separate items, one for inputs and one for outputs)

5. Click the "Done" button and quit Audio MIDI Setup

6. Launch your BIAS software application and navigate to the window that allows you to choose your input and output device. In Peak it would be under Audio>Hardware Settings. In Deck it is under Options>Hardware Options

7. Choose "Aggregate Device" as your input and output device

You should now be able to record successfully through your USB Audio device.