FCPX 10.0.5 crashed and logged me out

Move to the latest version of Lion and FCP X 10.0.5, it's the most stable combination currently.

Digital Rebellion makes a free app called "Preference Manager", run that to delete your FCP X preferences files safely and properly (and quickly).

Also verify all hard drives on your system have at least 10-15% of their total capacity left over as free space.

How much RAM do you have, what Mac model, what graphics card?

What thrid party plugins have you installed?

I am having the exact same problem. I am runnign 10.6.8 on a MacPro with 8 gigs of RAM and lots or free hard drive space. I am also running FPC X on a MacBook Pro 17" with no problem. I installed it on my older MacPro and the moment I started using it I had these "crashes into log out window/screen" issues.

Just now - I double clicked on a smart collection - bang - crashed and back to OS X log in.

I updated my Wacom drivers, deleted old quicktime components - nothing.

This is hugely problematic. I wanted to do a test run of FCP X on my professional editing machine. Embarrassing.

By the way - we are not the only ones with this problem.

I am on 10.6.8 and FCP X 10.0.6 and have the exact same problem. Except, I have it just when starting FCP X. The icon bounces in the doc and some seconds later, I am logged out and see the login screen of OS X.

I must say, this is profoundly disturbing. I have never seen anything like this.

And its not that I installed a new FCP. I have used it just some days ago and it worked fine. Suddenly I got logged out when trying to export. Had to login again and do the export again which went fine. But today I found I can not even start FCP X anymore. Have not installed anything since then.

That's an OS problem. I would take the computer to a service technician.

Okay, I was able to start FCP X again. I deleted all com.apple.FinalCut... files from user/library/preferences. Will watch if the problem happens again.

Tom,

thanks for responding. Apple does not seem to think it's an OS problem that can be fixed by a service technician.

I reported the crash-into-login-screen problem as an FCP X bug through their FCP X feedback page and was contacted by somebody from Apple within a few mintues. He wanted me to send them a crash log and my system profile, which I did. I guess I am not the only one...

It seems to be a bug that many people are reporting. I have in the meantime installed FCP X on a newly formated extra drive on that very same MacPro (running 10.6.8 - which I still have to use for SAN compatibility reasons) and it is better now, but I still run into that bug occasionally.

I am hoping they can fix this in a future update.

What OS are you using?

As I said - I have to use 10.6.8 on that MacPro - which according to Apple is supported for 10.0.6.

10.6.8 seems to be a common in the thread. Did trashing prefs do anything for you?

I installed an extra drive, fresh system, newly installed FCP X, got rid of all extra Kona drivers that I don't need for X, no other apps, just FCP X (I am running FCP 7 on the other drive) - and yes, it got better, but it's still instable. It just recently crashed whien I clicked on the little render circle icon - bang, right into the login screen again.

Same OS?

Yes. 10.6.8.

Same problem. It has happened to me when attempting to share files--first, uploading a clip to Vimeo, and next, making a playable DVD. The logging-out seems to happen when I start the sharing procedure and then quickly try to open the "background tasks" windows. If I restart FCPX, start the sharing procedure, and wait a while before opening background tasks, it seems to work better. I am using OS 10.6.8 and FCPX 10.0.6, on an iMac with 16G of RAM and lots of external hard drive space.

Another 10.6.8 user.

same problem here in 10.6.8 with FCPX 10.0.6. Seems to happen when i cue a bunch of clips in different events for analyzing for stabilization.

However, it seems to have stopped, at least for now, once i deleted my temp directory. I was getting errors like this from a bunch of apps in the console:

So i ran "sudo rm -rf /private/var/folders/lS/lSZsgVUK2Re3l++8ZOw3NU+++TQ" in terminal, which has stopped those errors, at least for now, and FCPX is no longer crashing and logging me out.