I know the title might sound clickbaity, but trust me, these are actual issues I'm experiencing. The Calendar app built into macOS is great, don't get me wrong, but there are some issues which honestly are making me think of switching to some other app.
- Events don't paste properly. When trying to copy events from one day to another, they appear in the wrong order (like an event at noon would appear before an event at 9:00 AM, for instance). I have to quit and relaunch the Calendar app to fix this. Obviously this does not happen with repeating events, but for things that repeat irregularly, copying and pasting them results in this issue.
- Additionally, pasting events causes it to appear in the wrong calendar - while the original event is under the correct calendar, the pasted event almost always isn't. So I have to manually adjust that, which, for many events is annoying.
- There is no way (that I know of, at least) to change what calendar multiple events are simultaneously. For example, it is impossible to change several events at once from "Home" to "Work."
- iCloud Calendar does not always sync across devices. This is pretty self-explanatory.