Final Cut X (10.3.4) crashing on external display

Thanks.... 🙂

I was tearing my hair out with this when Final Cut X (10.3.4) starting crashing on exit with OSX 11.0 recent update...

I'm using the workaround, but what a pain in the *** ....

Regards,

Doug

Yep got the same problem via Elgato thunderbolt 2's mDP on late-2016 mbp Touch Bar. I contact apple support and they seem to be unaware of the issue (at least the person I spoke to). Funnily, I figured to undock the dock and open fcp on laptop screen only and it worked.

Pretty disappointed... I only discovered the workaround after I did a clean install of high sierra

"they seem to be unaware of the issue"

I submitted a bug report about this issue after High Sierra had been released. Apple replied to it and asked for additional info. That was about 3 weeks ago. So they are aware. The question is how soon they will fix it...

It annoying, but the most efficent thing to get them behind fixing something seems to be filing an official bug report. I dont think the read these postings here most of the time

I've now found that even using the lid open fix, FCP X crashes randomly during various operations, using it with the Apple Thunderbolt monitor, losing all of the current work in progress.

Apple really needs to address this as the product is useless in the current state ...

Well, Apple just released an OSX High Sierra update10.13.1 (17B48) to fix what they've called bugs...

However they've failed to fix this serious FCPX Pro 10.3.4 bug...

What a crock.. they sell a $400 U.S. program and it can't even operate without crashing using their own Apple Thunderbolt display ... 😠

I have an even more serious problem than this - the whole MBP hangs and I need to force reboot the MBP. To reproduce this repeatedly, you run FCP without connecting the monitor first. Once FCP has started, connect the LG monitor to MBP. The whole MBP freezes almost instantaneously!

I submitted a bug report this and their engineer team has requested a sysdiagnose of the problem. Fortunately - well I guess - it is easy to duplicate the problem so I've sent the dump back to them. Bottom line at least they are looking into it! Sure would be nice to get this fixed.

Crashes every time on my LG 5k monitor which I purchased on Apple Store.

It does however work on the built in screen.

It is now December and the bug has still not been fixed.

I am so disappointed with Apple right now.

I just posted about this too and came up with the same work around.. Definitely an issue with FCPX and the new Update. Hopefully they find a solution.

I find with even with this workaround FCPX is not very stable when the external monitor is re-connected. Whenever I try to create a new project FCPX crashes right away.

What if you keep the laptop open?

Interesting, that actually works, but if I close the laptops lid I cant even open FCP again. Once I open the lid and keep it open FCP opens and I can create new projects.

Yes thats how it worked for me too.

Same Here. Not crashing on laptop screen - only external screen!

I'm also having the same issue. They need a fix for this right away. Way to go Apple on breaking your Pro apps.