Importing event to Mac Calendar creates two events
Hi, I downloaded an event from the Time Converter website, to import to my Calendar.
So when I got my event.ics file downloaded, I double clicked on it, it opened in Calendar, but created two identical events on the same day. I checked on my iPad and iPhone, and they both showed two events. Back on my Mac, I deleted one of the events. Both disappeared from my iOS devices!
Why would this occur, and what can I do to fix?
MacBook Pro (15-inch, Mid 2012), OS X Mountain Lion (10.8.3)