Hey guys,
I solved this problem without any coding oder logfiles. I had the same problem but it works with macOS Sierra!
Here is the workaround:
Accounttype: Advanced
user and password should be there
serveradress: https://www.example.com
serverpath: /owncloud/remote.php/dav/principals/users/USER
Port: 443
Use SSL
Use Kerberos v5 ...
thats all
Try it.