Hmmm… I didn’t have such a problem, but I did have a problem where I had to call customer service about…
I had an error message – “Project is from a newer version” when I was certain i didn’t open it in CC… and it was still a CS6 project.
they had me uninstall, and reinstall… then…They had me go under the Creative Cloud updater/assets thing, go down to Previous Versions, and find the updates under there for CS6.
which was like – Oh. that’s sorta stupid. When reinstalling, you’d think you’d already have all the updates…
ummm… just sharing my experience with such things… do other projects open?