Just finished testing and this one is working!
You can consider this one solved.
However, if you need some more information on this, let me know.
Thank you for the support.
When scanning for calendars, my DAVDroid 0.8 from F-Droid does not show group calendars. The server uses Baïkal, although with a custom frontend for creating calendars and such, and because I don’t administrate it, I don’t know the version (maybe it is visible from the logs?)
I had a look at #345, but well-known path detection is not supported by the server.
I suppose this is the same as #528 but AFAIK Baikal doesn’t even have group calendars. Or are we talking about Baikal 2?
Please follow up in #439.