Failed CardDav sync with cloze.com due to 'invalid format'

Initial setup
1

Has anybody successfully synced contacts with cloze.com via CardDav? Each of my contacts fail sync. How can I further troubleshoot this?

“Sync of item xxxx failed due to the following error: One of the identified items was in an invalid format”

I’m using EMClient v7.1.30794.0

2

Can you upgrade to the latest version at http://www.emclient.com/release-history and see if the problem persists.