DavDroid doesn’t handle exceptions from weekly recurring appointment correct. The exceptions don’t appear on the mobile phone, but they appear in owncloud, which I use as caldav server. I can provide you with an example ics file, if needed.
Thanks for your efforts, but this is a duplicate of #170.
This has been discussed exhaustingly in #3, please follow up there.
This is another result of #170, please follow up there.
i deinstalled and installed it new. after new configuration it works again. Thanks for your help!