The ‘V’ in the second field indicates “void” or that the data is invalid. You can see this too, as the fields after the ‘V’ should contain the lat/lon but they are empty.
Are you getting the “Comm Err” message? If yes, then it’s not even getting that far to see the ‘V’. The Comm Err indicates the software is not even seeing the “RMC” substring, which does indicate potentially the baud rates not matching or some other issue with the data. It looks like you can control the baud rate in the document you linked, you might try configuring different rates on the unit itself. Presumably you can also see the device listed under the COM ports in the device manager?
If you were able resolve the comm error, then the device would still report “Unlocked” with your current message shown and the lat/lon wouldn’t be available to the mapping measurements.
We used this USB GPS antenna (linked below) with success in our testing. It did involve some setup we can try to help you with if you go this route.
Andrew