unable to sync a remotely deleted entry

I added a remote calendar by CalDav. 

Then I created a new entry from OneCalender in the remote calendar. The sync was ok, and the new entry appeared in my remote calendar.

Then I deleted this entry from the remote calendar. This couldn't be synced back in the OneCalendar, and the remotely deleted entry still existed in OneCalendar. 

If the entry was created and deleted both in the remote calendar, sync was always ok. The problem only happens when I create the entry in OneCalendar and delete it remotely.

Please check.