709 Standard Dynamic Range (SDR) and Rec.

Automatically display the most useful functions for your task using the Touch Bar on MacBook Pro.

Generate proxy media in custom frame sizes from 12.5% to 100% of the original in ProRes Proxy or H.264.

Send your iMovie for iOS project directly to Final Cut Pro for advanced editing, audio work, and finishing.

Import, edit, and share 360° video from equirectangular images stitched together from a wide variety of cameras.

I have submitted a request to Apple, however, if you are running into this issue as well, I’d recommended submitting a feedback to Apple. Update – Final Cut Pro X 10.4 (FCPX 10.4) does not fix this issue as of right now, so the issue still persists. My video does go a bit in depth in some areas – so feel free to watch and share with your friends that have been running into this issue. This works really well with having one project.

You should have success (There are a few catches though, especially if you have multiple projects).

Select the new FCPX Library, and go to File > Relink Files.

Once everything is on the timeline, you can now relink.

Paste (cmd+v) on the new project (this will be pasting the copied timeline from the other un-relinked project).

In the new FCPX Library, create a new project with the setting you need.

Select all of the footage (cmd+a) and copy it (cmd+c).

Open the timeline that you need to relink.

Open the FCPX project that requires relinking.

Watch the video if you want to be walked though the process, but like I said – it’s simple. I have spent a lot of time trouble shooting this exact scenario and with trail and error, finally found a system (or workflow) that seems to have been working with FCPX 10.3.4 each and every time I run into this situation. And if I do have success, I am accompanied with some shots that are “black” and show up as “no data.” This is the worst scenario. BUT when I press “relink” – Final Cut Pro crashes. When relinking, the footage goes past the “validation” in FCPX successfully. Here are a few things to note: We are both using the same exact footage. But I’ve been running into issues of Final Cut Pro X crashing when I press relink. My job is now to check the project before exporting and uploading.

I send them files and a project file, they edit the documentary edit, and I get the project back at the end. I have a few editors that help me with my longer wedding documentary edits. It’s not pleasant, but most importantly, I as a wedding videographer, it wastes my time. Have you ever had Apple Final Cut Pro X crash when it’s being relinked? I have had that happen plenty of time.

Final cut pro x 10.3.4