Sorry, this is a misunderstanding on my part.
"Google accounts have been fixed and can now set up again properly",
.... "And a few bugs and common issues have been fixed, too."
and was of the opinion that something was fixed with the online accounts. That's why I tried "Generic CALDAV" again after a long time. I was pleased to see that this feature no longer crashes like it did in previous versions. However, appointments are still not synchronized.
@Mikaelb, I know the script solution and have used it for several months.
But, it no longer works for me with the OTA-21 RC.
In the terminal I start as part of a bash script :
and get errors with OTA-21 now. That's new! At the moment the calendars cannot be used.
The system message is
status = 20010
error = error code from SyncEvolution error parsing config file (local, status 20010): kalender: backend not supported by any of the backend modules (syncxmlrpc, syncsqlite, syncqtcontacts, syncmaemocal, synckcalextended, syncfile, syncecal, syncebook, syncdav, syncactivesync , platformgnome) or not correctly configured (backend! 3dselect backend databaseFormat! 3d syncFormat! 3d)
start = 1641012600, 2022-01-01 05:50:00 +0100
end = 1641012600, 2022-01-01 05:50:00 +0100
Status 20010 could be : 20010 Error parsing XML config file