@rfc2822 I was able to start radicale again and after a sync it worked. Thank you very much for your help!
I always have a lot of problems with radicale. Is there any caldav server you recommend?
when syncing back todo items that recur, davdroid strips them down to once-happening items and removes all records that the item was completed in the past.
The item on the “master” entry that is removed is “RRULE:FREQ=DAILY” in my case.
Recurring todos are not supported by the Tasks app and thus not by DAVdroid.
Even if it can’t display the recurrence, silently removing it seems… suboptimal and surprising.
Another option might be to simply skip any recurring items when pulling in new items; that is at least less destructive.
Merged with #520.