[Solved] Can't read/sync (shared) Calendar via CalDAV on iPhone Calendar App

Nextcloud version 16.0.1
Operating system and version iOS 12.3.1
Apache or nginx version nginx/1.17.0
PHP version PHP 7.3.6 (cli) (built: Jun 17 2019 21:54:29) ( NTS )

Nobody in my family can’t read or sync our “family” nextcloud-calendar anymore on their iPhones since some days (or since upgrade to NC16 on sunday?!). But everybody can make new entries, but these entries are only available to the one who made the entry on their own device. And all entries can be seen in the NC web-gui in any account. But after deleting the account on my iPhone and recreate it: all entries are gone from my iPhone and I can’t read/sync any entry from the well filled calendar :frowning:

Deleting Account on all devices and re-create Account an all devices. Now every device can read and sync shared calendar again. :+1: