Thanks for the hint, that I am not using the common contacts editor. I didn’t think of this opinion since I didn’t install any other contact editor. But I installed a sync software for SyncMl. After removing this software editing contacts is working like a charm Seems like android tried to edit my DavDroid contacts with this app.
End time is not used for repeating events
I created a repeating event from 12h00 to 14h00 for 5 consecutive days on my DAViCAl server.
On Android the events are displayed as if they were a 0 minute event from 12h00 to 12h00. The 2h duration is lost.
A single event is correctly synced by not a repeating one.
Thanks for your report. We forgot to write received DURATIONs into the database in the last commit. For further discussion, please see issue #60.