Ok, found something myself here: https://github.com/owncloud/apps/issues/687. Seems like Owncloud is not really good at dealing with some kind of either corrupted, or just “different” .ics imports. So on the owncloud user page I downloaded the not working calendar as .ics file, deleted the owncloud calendar, created a new calendar with the same name, imported the ics file. Seems like everything works now.Kjukju created this issue in owncloud/apps closed Error message Invalid VObject. Document ended prematurely. #687
Sync with 2 or more Dav servers
From the documentation is not clear if is it possible to sync android with 2 or more carddav servers.
@at1429 I do not understand what you mean.
You can add two accounts, one for each CardDAV server. Then you have two (or more) address books on Android, each assigned to the respective CardDAV server.
However vou can’t sync the same addressbook with two servers.
@at1429 I see. This is not an intended use case of DAVx⁵ and thus not supported by it. It would require completely other algorithms etc.