[Inf-IT DAVcl] Slightly OT: What is wrong with this appointment

Hi,

The following appointment works fine in InfCloud and Android, but it doesn't show up on iPad. Is there anything wrong with it?

BEGIN:VEVENT CREATED:20141201T101916Z LAST-MODIFIED:20141202T084819Z DTSTAMP:20141202T084819Z UID:855afabb-e5a8-42b8-9e54-395bd598b9f1 SUMMARY:****** RRULE:FREQ=WEEKLY;UNTIL=20160101T093000Z;BYDAY=MO,TH;WKST=MO TRANSP:OPAQUE CLASS:PUBLIC DTSTART;TZID=Europe/Amsterdam:20150105T103000 DTEND;TZID=Europe/Amsterdam:20150105T113000 DURATION:PT1H END:VEVENT

-- Johan