I'm using Google Calendars on more than one account.
Everything was fine in macOS High Sierra, but after upgrading to macOS Mojave, the
CalendarAgent process sat at about 100% CPU, continuously.
The only way I could hold the fans quiet is by freezing it by running:
killall -STOP CalendarAgent
But that's not really a solution. All it does is prevent the runaway process from executing. Consequently, the Calendar.app client doesn't work anymore.
Anyone encounter the same problem? Any ideas on a proper fix?