Thanks! We are still looking into this for you. As of the time we had checked yesterday, the entries for yesterday still looked good (even though your fitbit had synchronized step data with the site). Have you noticed any pattern with these listings (e.g., do they all happen to come at one time, are they added to your tracker slowly throughout the day, etc.)?
Also, I know you said you tried disconnecting and reconnecting once, but can you do it again to see if that makes any difference. Finally, please let us know what data your fitbit account (on their website) shows for your daily activity vs. what our site shows. Thanks!