I have this same problem.  More than one video file in the /my videos/raceQs/ folder causes no video to play during replay.  I only see the list of video files and get this message:  “We’ve found some videos, but none of them appear to be from this race”

However, when there is just one video file, I get this message: “We’ve found some videos that could be from this race but none for the current time.  Use “Video Offset” button below to adjust.”

Possible user issue: The internal time of the GoPro may not have been sync’d to GPS time.  However, in the above one-video scenario, I am able to compensate with the Video Time Offset function.