Yes, I have had this issue for 4 days.

It happens on each machine I use.

I have a strange issue. All was working fine but now I have calendar entries appearing in the sidebar in seemingly random phases. At the moment I have some appointments from the next 3 weeks appearing, but they are not the next 5 in my Google Calendar.

is there a certain type of appointment that does or does not get displayed?

I have some that are displayed for a few days and then neared the event are no longer displayed.