After update from 11 to 12 (and now stll from 13.0.5 to 13.0.6) : Calendar loading infinitly (and php-fpm 100% CPU usage)

[MikeLupe]

So maybe these issues are indeed linked:

NC12 Authentication issue with Cardav, Caldav and Sogo connector

Hi guys, I updated just now from NC 11.0.3 to NC 12. It worked without any issues. First I noticed that my Thunderbird Lightning was not able to connect no more, but I could not see any errors. The same with the SoGo connector. After that I checked on my two Android the cardav-sync as well as the caldav-sync. Both are refusing to work. Still no error, even the Nextcloud log stays empty. Then I removed on my Android test-wise the caldav account to start over. The problem I am facing is that …