That's it for me - Project work disappeared...

It doesn't work in Lion? 😕 As I said; thats a Lion thing...

I think he means in Snow Leopard.

It probably won't make much difference but we should (if you haven't already) submit feedback to Apple, letting them know that it isn't just hte one or two people getting the problem but a significant amount of people.

Probably FCPX is reaching the OS open file limit before the app's own internal open file limit. Unlimited undo feature is a proven killer of projects on the Mac, as evidenced by MIcrosoft Word on the Mac. I'm guessing FCPX hits that wall. I agree that this was written for iOS, not the current version of NeXTStep that we're running now.Maybe iOS has a bigger open file limit. Hope so. Glad I don't need anything that FCPX has to offer.

A possible fix is making sure you've updated to 10.6.8 - as mentioned in one of my previous posts, I was having the same trouble. This afternoon I updated to .8 and everything seems to be working fine again, touch wood....

No. Same issues in 10.6.8. I have to say, this is really odd for Apple to release this. I mean this is a major screw up.

Touché, it worked for a few hours then undo stopped working; closed it and re-opened and seems to be doing fine again for now... it stopped functioning properly whilst doing a Ken Burns crop, if it means anything...

Same thing here... I continually make sure Command-Z is working because once that stop working I know I have issues. I also have noticed with my projects that when skimming stops working your project is not being saved. I lost about 6 hours of work having this happen twice.

Now with all other projects I am constantly checking after every edit that Command-Z as well as skimming works.

Very frustrating...

I'm on Leopard 10.6.8, spent quite a while working on a project with several layers of composite clips, the undo button was disabled but I don't think anything of it, closed Final Cut this morning, and when I went to open it up again, the project was back to where I started with it. Hope Apple releases an update soon, this is a really annoying bug.

Me as well; I lost a couple hours of work to this bug a couple days ago.

That said, ever since I moved to working off an external RAID and not my main system HDD, it has been much better.

FCPX I tried so hard to like you, trying not to be put off by all the negative press. I sat down and properly studied the app as best I could, working through Ripple Training guides to hep me understand how great this product should be. I decided to try out FCPX on a smallish project for a client and settled down on a Sunday evening to be wowed by the plethora of features and tweaks that would make me go oohh and ahhh as I crafted my edit. I held back the urge to keep hitting CMD+S to save, as I am told I can (have to) let FCPX do this for me now, excellent.

Oh wait, I just reopened the project and it appears that the last save was done 3hrs ago.....thanks for that. Now whats this I hear about a 50% discount over at Adobe?!

Shocking Apple just shocking - if you wanted the world to be beta testers for you just ask.

Adobe seems to be running a promotion for Final Cut Pro switchers to Adobe Premiere. The most attractive deal is the one that includes the whole CS 5.5 Production Premium Suite, which includes After Effects, Photoshop, Illustrator and a number of other applications.

Here is a link to one reseller that I used: http://www.videoguys.com/Brand/Adobe.aspx

I'm so annoyed. Just lost three hours of my edit and I was finished. I was just about to export out the finished file.

Now I have to spend a further 3 hours in the office to finish it again.

I have found so many bugs in FCPX I'm starting to back track on my support for the product.

Wow. I just thought I'd join the list of disappointed folk that have spent 3+ hrs editing only to find that the whole project was never actually saving anything.

Gosh. There goes a whole bunch of time I'll never get back.

iMac 27" i7

Snow Leopard 10.6.8

COME ONNNNN! Just worked a solid day on a project, left the machine alone for 2 hours, came back and had to quit final cut pro x to eject a drive. Did so and my project reverted to where I started. PLEASE FIX THIS NOW.

And this is somehow Apples fault?

You should seriously start to look at the way you do things mate.

Making blank statements like this helps nobody - including your good self!