Can't add events to shared calendar in 10.8

[zen]

Weird problem. Using Calendar in Mountain Lion, and I have 6 shared iCloud calendars and one "On My Mac" calendar.

All the calendars show up, and I can tick and untick them as I like. However, on this Mac, if I try to add a new event, the only calendars I can add them to are the "On My Mac" calendar, and two of the six shared iCloud calendars.

If I use my other Mac (same iCloud account), I can add events to whatever calendars I like.

I can't find any particular permission settings or sharing options - anyone have any idea? Not being able to add events to the calendars on this desktop machine (the primary Mac in the house) is a major problem.

[nipsy43]

I found this article to be very helpful.

It essentially tells you that by deleting the odd calendar that is under the "on my mac" designation will fix this glitch. Worked for me !

http://www.runaroundtech.com/2012/09...ing-new-event/