Why didn't you back up your system so you could roll back?
I am having a similar problem. But I can get it to work if I sign on with a different user account. Worth a try. If it works you caould at least keep working. Good luck
Premiere opens fine on OSx Mavericks but when I use it for more than 5 minutes it freezes.
Ugh, any solution to this?
Not on Mavericks as I just switched back to PC, but had been running into a similar problem on Windows 8. Also searched all over the boards, and the only solution I found was something about moving .bundles to the desktop, etc etc. I was at the point where I was having to log out/restart every time I ran into this problem, however I think I ended up finding a work around.
Every so often Premiere will lock up, and then when I try to open it, it gets stuck at the 'Loading ExporterQuicktimeHost' screen. I've found that if I go into Task Manager, the "Adobe Premiere Pro" process is still running. When I end that task, then go to launch Premiere, it all works fine. Perhaps you can go into Activity Monitor > Processes and check if some sort of Premiere-related process is running?
Hope this might solve the issue for you!