Calendar does not refresh when deleting contacts When I delete a contact, its birthday continues to stay on the default Calendar app, in the Birthdays calendar. (FYI, this calendar automatically gathers events from contacts' dates.)

How to update/refresh the Calendar in this case?

I went to the app settings and clicked on Clear Cache, with no result. Should I do a Clear Data too?
I managed to do what I want via a combination of:


removing the Birthday calendar from the web account
removing the Birthday calendar from the calendar app
doing a Clear Cache and Clear Data on the calendar app
forcing a sync of my Google account on the phone