in korganizer i add "google calendar and task" then in the window settings there is 2 occurrences for calendars and tasks see the capture Reproducible: Always
Created attachment 101271 [details] google settings in korganizer
also you can see a bad naming: "contacts" instead of "dates de naissance et anniversaires" "dates de naissance et anniversaires" = "birthday and anniversary"
I see the same problem in korganizer 4:16.08.1-0neon
Same problem here (Leap 42.2, Kontact 5.3) Anyone an idea how to get rid of the second entry?
Google resource 5.8.2 no more problem