I am having the exact same issue - it has stopped showing my splits at the half mile mark, and says "GPS not connecting". I have never used my phone for this feature while running or walking - I always sync when I come back from exercise, and it works fine. I have been in contact with FitBit multiple times and they just keep telling me to restart. It has worked perfectly for the last 11 months with no issue until this update. Also, when on the phone with fitbit today, they told me they replaced and sent me a new device 2 months ago - which is completely untrue, I have never had an issue, nor contacted Fitbit for an issue - yet they're telling me they sent me a replacement.
