Looking at the code, the only thing that make sense is not enabling the sweep. You could run through the calibration process with sweep turned off. The software will not care and happy do it. Of course, it will be very fast as its not collecting any data. The coefficients will not be created like you show as there was no data collected to create them. The cal LED will be active as it made it through the calibration.
However, you wrote:
I'm getting nothing when I sweep. Seems locked up.
I suspect you actually do press the sweep after you have ran through a cal without the sweep enabled. The software being cal'ed is of course calculating the display values based on these nulled coefficients. It's going to display a lot of nothing just like you asked. You then turn off the calibration and like magic, it starts displaying data because it no longer uses the nulled coefficients.
12.5 Displaying Data
The software will default to a center frequency of 10MHz with a 2MHz span and 201 data points (Frequency spectrum shown in Figure 11). The V2+ was programmed with these defaults when the connection was made. The V2+ is actually sweeping at this time. Select the Sweep button and the software will begin collecting data from the V2+.
Maybe there is actually a problem but you have not provided any details on how to replicate it. I suspect like many, it's easier for you to post on the forums than to use that time to try and understand what is going on. Most of the basics were covered during the videos and the manual.