Final Cut Pro Decoding & Rendering Errors

Question

Final Cut Pro Decoding & Rendering Errors

I am having issues exporting a documentary project on Final Cut Pro X (version 11.0). The project is a little over an hour and when I play it back, it seems fine. But when I go to export the project (in even the lowest quality) I receive the following error:

The share operation "Export File: "Documentary.mp4" has failed. The operation couldn't be completed. Error (10008): processing frame. "Documentary" cannot be rendered at 00:37:02:19. Error (-12909): decoding source file. "MVI_5153.mp4" cannot be decoded at 00:00:39;12.

I did some research on this matter and it looks like the file is corrupted? I will mention that my hard drive went bad and I had to get all my data recovered and yes, there are a small amount of files that will glitch. I thought that they were not used in my project, but it seems that they have.

So is there anyway for me to know which clips are corrupted and unable to be decoded or will I have to run the export command every single time (which takes an hour) just to receive an error code? Hopefully there is an easier way.

MacBook Pro 14″, macOS 15.0

Posted on Jan 16, 2025 7:55 AM

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Answer 1

terryb

Level 4

2,772 points

Jan 16, 2025 11:58 AM in response to Alex_Masterson

The first thing I'd try is deleting the render cache. Select the library in the browser, choose File->Delete Generated Library Files... Choose All Render files. Manage render files in Final Cut Pro for Mac - Apple Support

If that doesn't change anything, find a backup of MVI_5153.mp4 if you can since it's been identified as having a problem. You could try cutting around that bad frame of 00:00:39:12. You could also try to Optimize that file by right-clicking on it in the browser and choosing Transcode which will create a (very large) ProRes file to be used instead. If that works, then try the timeline export again and see if FCP finds any other corrupted clips in the timeline.

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