FCP X 10.0.7 crashes when exporting optimized media

I see you have used some of Digital Rebellion's apps but you don't mention whther you have trashed the preferences using

http://www.digitalrebellion.com/prefman/

Corrupt preferences can create a vast range of different symptoms, so whenever FCP X stops working properly in any way, trashing the preferences should be the first thing you do using this free app.

Shut down FCP X, open PreferenceManager and in the window that appears:-

1. Ensure that only FCP X is selected.

2. Click Trash

The job is done instantly and you can re-open FCP X.

There is absolutely no danger in trashing preferences and you can do it as often as you like.

The preferences are kept separately from FCP X and if there aren't any when FCP X opens it automatically creates new ones . . . instantly.

If that doesn't have the desired effect try deleting the app with FCSRemover and reinstalling it.

I am a little confused by your term "rendering".

Are you referring to the rendering that occurs in the background and can be viewed on the Background Processes monitor or do you really mean that the crashes occur when you are exporting to something and FCP is encoding/transcoding rather than rendering?

If so, exactly what are you exporting from and to?

Why are you using Proxy Media?

Unless your projects are extremely complex it should not be necessary.

If possible try editing either the original media (AVCHD?) or ProRes 422.

I would suggest that there is probably something wrong with the computer.

You shouldn't be getting dropped frames unless you are editing highly complex projects containing numerous multi-tracks or loaded with special effects etc.

It is quite possible your hard drives are too full or fragmented or that your Mac just needs some basic spring-cleaning.

Quite the reverse.

To take just one example, if the problem lies with over full or fragmented hard drives, the problem will become worse as you edit and vast amounts of files etc. are being added continuously.

You should have no hard drive more than 80% full and the system HD should have as little as possible on it.

Open Disk Utility and run Repair Disk Permissions and Verify Disk if you haven't done it recently.

I'm having exact the same problem. Used disk utility to no avail. All disks are fine. Never had a problem with FCP X. Since three days it just wont export a very simple 2 min movie with some photos. Tried every export on every setting for three days. No luck. Big trouble here.. need to get working.

I would ask how you moved those files when you say you moved projects and events to another hard drive. I found out that if you simply copy those folders to another drive you can cause all sorts of issues. I did that early in my FCP days and finally had to abandon the project entirely. There may have been a fix but I could not find it. I could not move it back to the original drive and it would lock up FCPx at some point when I tried to use it. You have to copy/move projects and events from within fcpx.

If you are moving and deleting projects from within the Finder as opposed to doing through FCP menus, then I would suspect that is the issue and if your experience is like mine you may have to start those projects from scratch.

I'm having the same problem. Crashed and crashes. I'm always moving stuff in FCP menus, never in the finder.

thanks for your help anyway.