I have a local owncloud instance running and use it's calender app. Three calendars are imported to korganizer via caldav. This is running for some months now and usually without any problems. However, since yesterday I have the following problem: I create a new event with korganizer and after syncing with ownCloud, the event is gone. The sync was sucessful, I can see the event via owncloud, but korganizer forgot about it. Happens to all synced calendars and to all events that I create.

It's Kontact 5.1.1 on Arch Linux.

Works for me (ownCloud 8.1.3 on Bananian/Debian 7, KOrganizer 5.1.1 on Arch Linux)

Heinz

Turned out it's a ownCloud problem since a component is not compatible to php 7.
Solution: https://github.com/owncloud/calendar/issues/1002