On the C|24 in Pro Tools 9.0.0 or 9.0.1, when assigning inputs or outputs to a BUS (rather than an INTERFACE input/output), the C|24 displays and requires you to scroll through the buses mapped to interfaces before showing the internal buses. When selecting a bus input or output, it should only show internal buses. Essentially, the C|24 doesn't "read" the I/O Setup correctly. It should read it like the Pro Tools software does. Also, this happens even after updating to Pro Tools 9.0.1 and the newest C|24 firmware.
Idea No. 1517