I had to do a factory reset on my S8+. icsdroid was restored and setup of the calendar-URL worked.
Icsdroid shows the right calendar name so I think, the connection works fine.
But the calendar will not be transferred to the calendar on my mobile, icsdroid tells me “noch nicht übertragen” (not yet transferred) and stays in this state since several days.
De- and reinstallation shows the same issue.
What goes wrong?
Thanks for your help,