Cei de la Apple au anunțat ieri că au identificat cauza unei probleme de sincronizare între device-urile cu iOS 6.1 și serverul de Microsoft Exchange.

Apple has identified a fix and will make it available in an upcoming software update. In the meantime, you can avoid this bug by not responding to an exception to a recurring event on your iOS device. If you do experience the symptoms described above, disable then reenable the Exchange calendar on your iOS device.

Până la noul update, un work around temporar, aici.