I just upgraded to CC a few days ago, and then yesterday discovered that my current version of Suitcase (Fusion 3) would not work with CC… so I upgraded to Fusion 5. Based on your note, it looks like that was the kiss of death. I had a huge deadline tonight and was 4 hours late because the document wouldn't save, wouldn't undo, etc etc. Tried trashing preferences, caches, nothing….
And I am NOT using Maverick yet. I am on 10.8.5.
They acknowledged the problem in February and it still isn't resolved?? So frustrating!!!!