Hello,
the calendar app sync with my google account stopped working. I can see the appointments created in the past but I don’t see the ones created in the last days.
Likewise, if I enter new appointments from the phone, I do not see them from the other synchronized devices.
I’m not getting any sync error messages from my phone.
This often happens after updating the OS, you should just remove the related Google Accounts and log back in again (it works for me everytime my calendars stop synching).