@Orls does it sync properly? It could happen if the Bluetooth connection is unstable. Try to restoring the connectivity first and then unlock with your phone:
- Unpair (remove) Versa from your phone's bluetooth settings
- Reboot your phone. Do not pair in your phone's bluetooth settings
- Reboot your Versa by pressing and holding the left and bottom right buttons until Fitbit logo flashes
- Open Fitbit mobile app
- Sync
- Unlock with the phone.
The trick here is to not pair in phone Bluetooth settings but rather let the Fitbit mobile app do that.

Marrrmaduke | Canada
Charge HR, Blaze, Charge 2, Charge 3, Inspire HR, Versa Lite, Versa SE, Aria