Is the virtual partner data screen working for anyone else?

Perhaps I'm not understanding how this data screen is supposed to work. In a run activity I added the virtual partner data screen and set the pace to 8:00 min/mile. During the run the "time ahead" data field never reads anything other than 00:00 and the screen never changes background colors (black or white) to indicate who is leading. Am I missing something?

For what it's worth all the other functionality that uses the virtual partner type screens (segments, racing a previous activity, training target) all seem to work how I would expect.