Hello,
I just stumbled upon a rather bizarre problem while managing same entries of two calendars I have in ical.
I had a repeating entry where I changed some individual appointments later on.
Again I later decided to move other entries to a different calendar.
I noticed that apparently it's not possible to move individual appointments of a repeating entry, because all appointments of this dates showed up in the other calendar.
So I cut this appointments (which is possible) and pasted them into the other calendar.
Since then all appointments show up in both calendars and I can't get rid of them!
Some days even show triple and quadruple entries!
I even reloaded the entire ~/Library/Calendars directory from the backup but even then they show up. (I also emptied the trash, rebooted my MBP just in case something still accesses the old version of some relevant files)
But they are still there!
EDIT: I just noticed that in a third calendar a single entry also just got doubled. This particular calendar has (content-wise) nothing to do with the other two calendars or their entries. :-(
For the time being I won't synchronise my phone since this is the only reliable source at the moment.
EDIT2: while looking at it again I just noticed that I can't delte some of the double entries. :-(
How can I approach this to solve this problem? It's pretty annoying.
Thanks a lot, Michael.