FinalCutPro 10.5.3 Crashes on Exporting Any File

Just to let you know my point of view, the reason I rejected installed third party software at that point because I have just reinstalled macOS (did start from zero, no any migration, as if it was first out-of-the-box). However, a problem occured on a fresh OS with just FCP and Compressor installed! So what is the point of installing software-confliction-report application ? There was nothing on my mac that causes issue but FCP itself. As you might have seen many people facing this very same issue. You should now know that this is a problem with FCP update that does not work in some "first setup" regions. As some working machines here could not reproduce the issue eventhough changed a region to non-working region (i.e. Thailand). So far I have seen "first setup" regions that do not have problem are US, UK and Australia (mostly English-speaking country) and some regions that having a problem are Thailand, Panama and some unconfirmed areas (non-English).

Also thanks for confirmation on your setup.

No, it is a fresh start. Started over from the welcome screen, newly created user, no migration. Library/Project gets automatically created on first FCP launch. Even weirder is that FCP crashes on nothing applied to a clip, just import and click export right away. This made me believe that a problem comes from FCP itself.

Also have seen that some users can get away by exporting a non-audio clip which I planned to try too. I will get back on this later.

Thanks terryb, I do not disagree about third party software but I am quite confident about software conflicting is not an issue because I started everything over from zero without any addition software or migration (including first-party ones except compressor).

Uninstalled Compressor, still crashes on video with audio. Only have Final Cut Pro app. It is really FCP internal bug which effecting some (including myself) but definitely not all.

Thanks for sharing a machine info, it is not really a RAM size dependent. However, others point that reinstall OS might help. Don't know if that will work for you.

So glad hearing you can avoid a crash by removing additional languages. I will try this too.

If you have a backup (Time Machine), you can restore from that one but if you don't have it, well, we are in the same boat here.

I am really wondering what causing this because my machine (apart from hardware perspective) is clean. I have a clean install macOS with FCP and compressor right from App Store, no others. So nothing seems to be able to mess up with this crash.