Here's what I have found. If I send invitations to people whose email addresses are in my address book, the don't get sent. However, if I enter and email address to people not in my address book, the DO go out, just like before iCloud. Also, if I type in the email address of someone in my address book (as opposed to using the plus sign [”+"], it doesn't go out.
So.....it seems that iCloud/iCal needs a fix. I have a case number and have spoken with Apple Support and expect an answer in 3-4 days.
Hope this sheds some light; sorry it's not a fix
This is still going on! I have iCal 5.0.3 and OSX 10.7.5 and I can't send out invites. I can receive them from others, but can't send them out!
I was able to send out invites until I went to the Cloud. Ever since I've been iClouded, I've had the problem. I've seen numerous threads, but am wondering if there is a current "fix" out there somewhere. Of, course if I knew what was causing the problem I could fix it!1
I've always suspected that my iCloud account was corrupted somehow.... They must definitely be something incompatible since I went to the Cloud...
Any help or suggestions would be appreciated....