I'm not sure if it's my problem or... but I get logged out of Wazapp every time after a reboot and have to re-register for the service (with the 3-letter code received for the first time, though). Strangely the previously added account is still in the account manager and messages remained even after deleting and reinstalling the app.

I suspect if the problem come from me changing my SIM card from my N9 to my back-up phone every time the battery goes flat (which is rather fast...) and restarting the N9 after charging without putting the SIM card in... But there were instances when the SIM remained in the phone the entire time and the app still logs me out after a reboot...

Does anyone know why this is happening?