I recently upgraded from
The GNOME Calendar application displays a popup requesting my password for my linked Google account.
It does so whenever launched explicitly, and at times on its own.
When I type my (correct) password, the popup just reappears as if the password wasn't incorrect.
The only way to dismiss the popup is to press the
I can see my Gmail events in the calendar, so it does seem to sync.
I tried removing my Google account from
Online accounts and re-adding it, with no change.
If it's any help, I am using Google's two-factor authentication.
Also note that Thunderbird does not seem to have this issue.