User profile for user: FilipOfficial
FilipOfficial Author
User level: Level 2
196 points

“The share operation [share destination] has failed” in Final Cut Pro 11.2 on macOS 26.0.1

I've been trying to export out a project for 3 days now without success. I constantly get the same error message: “The share operation [share destination] has failed”. It gets to about 10-20% before giving up. It's so frustrating, why doesn't it tell me WHY it has failed?


About the project:

  • 3840x1920 (2:1 aspect ratio) 25 FPS
  • ≈4 minutes in length
  • A lot of layers of Compound Clips with the Green Screen Keyer effect, Vignette effect, Gaussian Blur effect, some 360 degree footage and 360 Compound Clips (with the 360 Gaussian Blur effect applied to some of them) mixed in with regular 2D clips, and a mix of different color grades, mostly using the Color Wheels.
  • Only plugin used is the latest available version of Neat Video Pro, however, this problem also occurs with the plugin disabled.
  • The Final Cut Pro Library as well as all camera footage is located on a Samsung T7 Shield 2TB external SSD (connected via the USB-C to USB-C cable) which is formated as a GUID, APFS (encrypted) and has 513 GB of free storage.


What I've been trying to solve this:

  • Clicked on the Library —> File —> Delete Generated Library Files... —> Checked all boxes, including deleting All render files (not only unused ones). I've also checked all the boxes for other stuff like optimized media and magnetic mask files.
  • Restarting my Mac.
  • Updating my Mac to macOS 26.0.1
  • Trying to export to different destinations, both on the external SSD and also on the Mac's built-in SSD.
  • Exporting out as both "Video and Audio" with the Source codec (Apple ProRes 422), but also as Apple ProRes 4444, and also as "Computer" with H.264 Multipass (Slower) setting, but they all result in the same thing.


The frustrating part is that it renders the whole timeline perfectly so I can play it back without problems in Final Cut Pro even with "High Quality" set as the viewing mode in the Viewer. That's also why it's so weird to me that it wants to re-render everything even when I try to export it out as the source codec since that usually means it'll just grab the Background Render files to quickly generate the exported file.


My questions are:

1 - Have you ran into this or something similar?

2 - What else can I do to solve this?

3 - Is there any way to extract the Background Rendered files since they clearly exist so I can just rename it and let it act as my exported file?



[Edited by Moderator]

MacBook Pro 16″, macOS 26.0

Posted on Sep 30, 2025 5:46 AM

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User profile for user: FilipOfficial
FilipOfficial Author
User level: Level 2
196 points

Posted on Oct 11, 2025 4:51 PM

TL;DR: The problem was the Neat Video Pro plugin rendering corrupt frames.


After weeks of experimentation, I've figured it out. If I clicked on the "Details" button in the notifications I got from Final Cut Pro about the export failing, I always got some variation of the following pop-up:


"The share operation "Export File:

"MASTER 2.mov"" has failed.

The operation could not be completed because an error occurred when creating frame 3452 (Error (10008): processing frame. "MASTER 2" cannot be rendered at 00:02:18:02.

Error (-8969): bad data in source file. "P1361914.mov" cannot be decoded at 00:00:02:05.).".


If I replaced that footage with another file or even re-rendered it with Compressor, Final Cut Pro would always find a new frame/file to complain about, like:

"The share operation "Export File:

"MASTER 2.mov"" has failed.

The operation could not be completed because an error occurred when creating frame 360 (Error (10008): processing frame.

"MASTER 2" cannot be rendered at 00:00:14:10.

Error (-8969): bad data in source file. "P1361927.mov" cannot be decoded at 00:00:12:12.).".


This claim seemed unlikely since I've never had problem before with corrupt footage from my Panasonic G9 camera, and since I had also done checks on the external SSD with Disk Utility that confirmed there was no issue with it. So I figured that Final Cut Pro must be mistaken and that the "bad data in source file" claim can't be true since it complains about it no matter that file, and even if it's replaced with a clean ProRes file. Also, other NLEs like iMovie, DaVinci and even Compressor and Apple Motion had no problems with importing, rendering and exporting these same files.


In the end, it turns out that the solution was to disable the Neat Video Pro plug-in on all Compound Clips that had it applied to them. I found several mentions about Neat Video causing these misleading error message to occur in different discussion threads online. It seems like it might be a bug with Neat Video that renders corrupt frames when exporting for some reason, and I had missed disabling it on one of multiple Compound Clip before which is why it didn't work even though I thought I had it disabled everywhere. With Neat Video Pro disabled, the video is exported as expected.


Error message example 1.


Error message example 2.


The solution.


[Edited by Moderator]

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User profile for user: FilipOfficial
FilipOfficial Author
User level: Level 2
196 points

Oct 11, 2025 4:51 PM in response to Michel Boissonneault

TL;DR: The problem was the Neat Video Pro plugin rendering corrupt frames.


After weeks of experimentation, I've figured it out. If I clicked on the "Details" button in the notifications I got from Final Cut Pro about the export failing, I always got some variation of the following pop-up:


"The share operation "Export File:

"MASTER 2.mov"" has failed.

The operation could not be completed because an error occurred when creating frame 3452 (Error (10008): processing frame. "MASTER 2" cannot be rendered at 00:02:18:02.

Error (-8969): bad data in source file. "P1361914.mov" cannot be decoded at 00:00:02:05.).".


If I replaced that footage with another file or even re-rendered it with Compressor, Final Cut Pro would always find a new frame/file to complain about, like:

"The share operation "Export File:

"MASTER 2.mov"" has failed.

The operation could not be completed because an error occurred when creating frame 360 (Error (10008): processing frame.

"MASTER 2" cannot be rendered at 00:00:14:10.

Error (-8969): bad data in source file. "P1361927.mov" cannot be decoded at 00:00:12:12.).".


This claim seemed unlikely since I've never had problem before with corrupt footage from my Panasonic G9 camera, and since I had also done checks on the external SSD with Disk Utility that confirmed there was no issue with it. So I figured that Final Cut Pro must be mistaken and that the "bad data in source file" claim can't be true since it complains about it no matter that file, and even if it's replaced with a clean ProRes file. Also, other NLEs like iMovie, DaVinci and even Compressor and Apple Motion had no problems with importing, rendering and exporting these same files.


In the end, it turns out that the solution was to disable the Neat Video Pro plug-in on all Compound Clips that had it applied to them. I found several mentions about Neat Video causing these misleading error message to occur in different discussion threads online. It seems like it might be a bug with Neat Video that renders corrupt frames when exporting for some reason, and I had missed disabling it on one of multiple Compound Clip before which is why it didn't work even though I thought I had it disabled everywhere. With Neat Video Pro disabled, the video is exported as expected.


Error message example 1.


Error message example 2.


The solution.


[Edited by Moderator]

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User profile for user: terryb
terryb
User level: Level 4
3,334 points

Sep 30, 2025 11:11 AM in response to FilipOfficial

To my understanding, background renders may or may not be used for exporting depending on a variety of conditions and various plugin behaviors.


Have you reset FCP Settings? That's always an easy troubleshooting first step. Hold command and option while launching FCP, then re-open the library you were working on. Be sure to go into Preferences and set things back, like disable background rendering and depending on your workflow, set imports to Leave files in Place.


If there is subtle corruption in the project, sometimes selecting all in the timeline and copying, then pasting into a new project can clear the issue.


If there's corrupted media, try what Michael suggest of export the first half, and if it succeeds, export the back half. Divid and conquer until you narrow down where the corruption is.


WAIT - I just noticed that you've got 360 effects applied. Is this a 360 project? If not, try replacing the 360 effects with standard ones.

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User profile for user: FilipOfficial
FilipOfficial Author
User level: Level 2
196 points

Oct 11, 2025 3:57 PM in response to terryb

No Terry, it is a 2D project. But it utilizes some 360 degree Compound Clips. Essentially, the actors are recorded as standard 4K footage (3840x2160) but the backgrounds are kind of like Equirectangular Matte Paintings (in form av HDR images from Poly Haven), therefore they are set up inside of 360 degree Compound Clip and the Orientation parameter's is used to frame up the correct part of them behind the keyed footage of actors in front of a blue screen.

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“The share operation [share destination] has failed” in Final Cut Pro 11.2 on macOS 26.0.1

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