@Anthony-Kelly You might try unplugging the omega from the dock and putting a small piece of jumper wire between the receive and transmit connectors of the connector the omega sits in (just be careful to get those and not power lines - a 1k resistor would work too, and be more tolerant of mistakes).

With the wire in place whatever you type in a serial terminal should echo back, without it the echo should stop. That would test the USB-serial distinctly from the Omega 2.