Upgraded to Mavericks - and iCloud. Calendar will not stop 'updating' - and has not synced all entries across all devices/calendars.

Question

Hello Apple Support Community;
I am looking for some help on several matters related to my upgrade to OS X Mavericks this week.   THIS issue is one related to CALENDAR.
I believe that I have done everything (as instructed) to install, activate, and sync contacts and calendars via iCloud - immediately following my upgrade to Mavericks earlier this week.   When I opened CALENDAR for the first time - from the Dock on my computer (not the iCloud calendar) - after upgrading to Mavericks and setting up iCloud - CALENDAR provided a pop-up notification stating "Moving calendars to server account..." with a moving "candy cane" progress bar.  
This has been "updating" for about 12 hours, now.   And while open and "updating" - it will not allow ANY other commands, scrolling, or menu options.   Additionally, I am unable to close this calendar of the Mac, unless I 'Force Quit'.   I have, in fact, executed Force Quit, and restarted the Mac.   No change... it still "updates".  
When I open the iCloud calendar - it opens and works (mostly).   There are events on my iPhone 5 that are not on the iCloud calendar.   And there are events on the iCloud calendar that are not on my iPhone.   I have created new calendar events on each calendar account (iCloud on my Mac and iPhone 5) - and they seem to automatically update each device.   There does not seem to be any obviously rationale for the inconsistency of the calendar (iCloud and iPhone).
Can you offer ideas for possible solutions to:
1)  the "permanently updating" calendar from the Dock on my Mac?
2)  ensure that all events are properly synced across all calendar accounts (and devices)?
THANK YOU!!

Answer 1

Hello Phil... I got nothing from the Apple Communities.   May have been very hard to diagnose via my description - or hard to resolve given many possible solutions.  
The perpetually updating scroll-bar-of-death continued for about a week.
I DID (finally) get resolution from the Genius Bar in my local Apple Store.   They deleted all prior "local" calendar back-ups and content - as I had my Calendar up on iCloud - which essentially "reset" the calendar function... and then reloaded the calendar, and then pulled in my calendar data from iCloud.  
They twisted and tweaked a few more things that I was not able to follow (sorry I cannot offer more assistance on these other things).
They also reloaded Mavericks.  
Everything seems to be working well now.
Apple Community... any more guidance for Phil - and others???
Good luck, Phil.