This is exactly what I was telling myself like 2 weeks ago - "Don't ever upgrade in the middle of a project". Ha.
Well what kind of also screwed me was the first 27" iMac I received a few weeks ago that arrived with a defective heat sensor (fans were blowing like crazy).
I was determined to start and complete this project on this new machine. I didn't get too far, just made initial selects on a a few shoot dates.. but man, this is just so typical of major software and OS upgrades. It seriously never ends with this stuff. I've experienced these types of things for years. It never ends and you need to always be ready to get screwed by these types of things.