[Owncloud] Calendars no longer sync to iOS 5 device

[Advrk Aplmrkt]

Hello,

Something strange happened about a week ago, some (but not all!) of my
calendar events in ownCloud no longer appears in my iOS 5 iPhone 3GS.

I tried to delete the settings and re-add the CalDAV calendars on my
iPhone, but still some calendar entries don't appear.

Here is an even stranger thing: ALL the events that don't sync are
recurring events, but the events that do sync include both one time
AND recurring events!

I have no idea why this is happening, can anyone help me troubleshoot this???

Thank you very much.