Unreliable iCloud calendar sync
The calendar entries are synced to the "cloud", I can see it in the calendar Web-App, but can not get on the mobile devices (iPad & iPhone). The sync takes place after opening the iOS Calendar app, deactivate and activate the calender sync in the iCloud settings or after restart the iOS device. Using newest software Version on Mac (10.8.3) & iOS (6.1.3).
The problem does not always occur, but only sporadically. Any ideas?