Thanks but nope. I just have the one calendar with all events.

That’s been ruled out. All events are on one calendar.

Thanks but I tried this and the other calendar app works just fine. Only Google calendar app is missing the events.

I’ve not thought of that. What kind of apps usually have management permissions for the calendar? According to the Permission Manager, only Google, Gmail, Calendar, Android Auto, and Wear OS have calendar access. I think all of those need to stay on but I’ll try removing them if I can to see if makes a difference.

None of that worked. Which calendar widget do you use?

I’ve tried that too. Something is really wrong and it’s not just the widget. All appointments are gone during the last week of every month. But if I go to my Google calendar online, they are still there.

Thanks, but I’ve already done that.