iOS5: All my events are duplicated!

This is a known iOS5 upgrade bug, which can have 3 causes. Please check which of the reasons apply to your device.

Please check first..




Duplicated Calendars #1

Cause

Your calendars are duplicated by iOS5, appearing under 'From My iPhone' (or 'From my iPod touch' / 'From my Mac') and under iCloud.

Solution



Duplicated Calendars #2

Cause

iCloud incorrectly duplicated all your calendars: under the 'iCloud' header, all your calendars show up twice.

Solution



Duplicated Events

Cause

iCloud incorrectly duplicated all events in the same calendar as real duplicates. You can see this if unchecking (hiding) one calendar removes all duplicates. The duplicates also show up in the native iOS calendar as well.

Solution

Please contact iCloud Support ASAP, since your iCloud upgrade went horribly wrong.