FCP 120fps footage shows black

After upgrading to macOS Ventura 13.4 when I'm in Final Cut my Slow motion footage is all black screen.

Also doesn't play in Quick time.

But it does play in VLC

this is all Mp4 footage from a Sony FX3


Does anyone have the same issue???

I have a M2 MacBook Pro and everything Is up to date

Posted on May 21, 2023 4:45 PM

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Posted on Jun 5, 2023 5:49 AM

Note: On Sony media, this bug only affects 10-bit 4:2:2 XAVC-S at 100 or 120 fps. It does NOT affect 10-bit 4:2:2 XAVC-HS at 100 or 120 fps. I believe all Sony cameras that can shoot the XAVC-S codec at that bit depth and chroma subsampling can also shoot the XAVC-HS variant.


On Apple Silicon Macs, the XAVC-HS version seems to run smoother and there is no quality loss.


For existing XAVC-S material with those parameters, the only solution is transcoding or downgrading to Ventura 13.3.1(a). But for all new material, shooting XAVC-HS could be an immediate solution.


Although the problem has been most widely reported on this XAVC-S variant, it seems to exist on some other codecs such as DJI 5k 10-bit 4:2:0 H-264at 23.98 and 29.97 fps.

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FCP 120fps footage shows black

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