Unable To Sync

[09KR0058]

I recently (accidentally) upgraded to the latest v3 of Fuelly. Actually had been quite happy with the old Gas Cubby iOS app, but there's no turning back now. So far, I'm pretty impressed with the new app.

Each time I try to sync, I get a dozens of errors "Unable to sync this fuelup. Make sure it has a valid fuel amount and odomete3r/trip length and try again." The problem is that every single one of my entries is exactly the same, for both cars. I always enter the unit price, quantity (app then accurately calculates total cost from that), odometer, fuel type, fuel brand, date/time and location. I see absolutely no difference between the items that successfully sync and the ones that are giving this error.

Any idea what's going on here?