My usual issue goes something like this:
- Click to add new event, under the default calendar
- Add details, etc, and save
Later on, when I want to move it to a different calendar, I edit it, and change it to a different one via the drop-down.
- Make edit, click done
- The event will change to the proper calendar
- The event disappears
- The event reappears under the original (default calendar)
All the calendars are on Google Calendars, and synced via CalDAV into iCal as delegates. I've never had an issue up until a few months ago, and now I have to sign into Google each time I want to move an event.
Running OSX 10.7.5, iCal 5.0.3