FCPX not working with prores raw

I'm shooting with a sony a1 raw output to a atamos ninja v+ set to prores raw. when i import the clips to fcpx they appear black unless i hover over them and when i drag a clip into the editing timeline it keeps looping render and when i try to play it, it's just black. when i export the clip to rec709 it gives me an error message and wont export.

Mac Pro (2019)

Posted on Dec 15, 2023 4:57 PM

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Posted on Mar 14, 2024 4:02 PM

This has been happening since December and is an FCP 10.7 bug which has not been fixed. It does not relate to the OS directly. It happens on Sonoma and Ventura (Tom reported this) but is mainly reported for Sonoma primarily I presume because those who tend to update FCP also tend to update the OS.


It is a complex bug. It is only observed on some computers and not others so some Intel Macs and M1 Mac Minis seem to be the main ones affected. It affects some ProRes Raw files and not others even from the same camera. It relates to frame size and not frame rate so, for example, 4.1K ProRes Raw files from the Nikon Z8 and Z9 are affected regardless of frame rate but not 5.3K ProRes Raw files from the same cameras.


It will take an FCP update to fix. I think it is pointless to try to go back to an earlier version of the OS. The only fix for affected computers is to install FCP 6.x. There are workarounds such as using Compressor to transcode to ProRes.

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67 replies

Jan 2, 2024 8:43 AM in response to felixmizioznikov

felixmizioznikov wrote:

I think I may have just figured this out. according to the (*) when downloading pro video formats they are not actually downloading and installing. I think my video graphics card may not be compatible..


It's not a simple case of what Macs have Metal support. A range of Macs including some M1 Macs are affected and most or all of them support Metal 3 as far as I can see.


Not sure what you mean about Pro Video formats not installing. You need to look under System Report-Software-Installations and scroll down to P. You should see all versions that you have installed up to now in the report.

Feb 16, 2024 9:45 AM in response to felixmizioznikov

So I have an update.....which is..... I bought an imac studio.

This thing is pretty amazing. I can now work with prores raw and it's amazing and I bought a LD hdr screen which has been working out great.

Apple techs still havent been able to solve the prores raw issue on the intel imac pro


If the forum allows sharing youtube videos here are sample clips taken with the sony a1 and atomos ninja in prores raw hq..


HDR Miami sample clips



Feb 16, 2024 11:56 AM in response to felixmizioznikov

I take it you mean Mac Studio and an LG monitor - at least you can move forward now in any case. I had a quick look at the video you linked and it looks good in HDR on my M1 Max MBP.


One thing - you are clipping highlights in some of the shots. I don't know if this is in post or when shooting but keep an eye on those as they really stand out in HDR. The Ninja waveform or RGB parade should help to avoid overexposing. Once you do that there is no way back in post. I learnt this myself the hard way.

Mar 14, 2024 3:16 PM in response to Tom Wolsky

Nothing out of the ordinary. The only issue was I couldn't playback the file in the import window.


The files were captured with an Atomos Ninja 5+, UHD 29.97 ProRes Raw. They playback in Quicktime.


I did update the Pro Video Formats.


I have a M1 Max MacStudio on 14.3.1 running 10.7.1 FCPX. That computer plays ProRes Raw just fine. Im going to image it and apply it to my Mac Mini. Hopefully reverting back to 14.3.1 does the trick.

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FCPX not working with prores raw

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