'Open Calendar' opens Calendar.app to the wrong event

[SquaredTiki]

Something strange seems to be happening for me when I use 'Open Calendar' in Itsycal to try to edit an event in Calendar.app.

If Calendar.app is closed at the time I click 'Open Calendar' on an event then it seems Calendar.app opens but highlights the event I last 'opened in Calendar' with.

If Calendar.app is open at the time I click 'Open Calendar' on an event then Calendar.app highlights an event that's off by one or two from the one I actually wanted. If I click 'Open Calendar' on an event that is on the same day Calendar.app already has visible then the selected event does not change.

I can't tell if this is a Calendar.app bug or an Itsycal bug.