calendars not sharing correctly
We have two apple ids and simply want to share three calendars reliably. It all started (or got worse) with the purchase of a new mac1 MacBook air. The configuration is user1: iMac 27" 2019, iPhone 11 Pro, iPad air (3rd generation); user2: MacBook air (with mac chip), iPhone 11, iPad air (3rd generation). All have current OS updates.
The first problem noticed was that an item added by user1 was not on the calendar.app on the MacBook of user2. More research showed that events would disappear even though the calendar was shown and was checked. user2 IOS calendars were sporadic and would often be there in the evening and disappear in the morning,
There are three calendars we need to share between the users (user1 events, user2 events, joint events) We use no "local" calendars.
After much gnashing of teeth and tearing of hair, extended periods of time with Apple support, the item has not been resolved. User2 is ready to throw her new MacBook out and go back to pad and pencil.
After the last visit with support and having tried many iterations, I exported all calendar data on user2, deleted all calendars (save the one that you can't delete), did the same on user1, created three new calendars, imported the exported data into the proper new calendars, issued and accepted shared calendar invitations. Now everything works cleanly on user1, user2 gets occasional good updates when I quit calendar.app and start it again ... the same holds for user2 iCloud calendar.
Any suggestions? Or should I join her and go back to pad and pencil?
MacBook Air (2020 or later)