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FCP 11 displays Lumix GH6 100fps files in black

They work fine in FCP 10.8.1, so I had to revert to it for now, as I am using this kind of HEVC slomo files in several projects. When you create optimized media, they are displayed correctly, but I don't want to create these giant files if I don't have to...


Anyone else having encountered this bug, or found a workaround without creating optimized media?


I hope this will be fixed in the next update!

MacBook Pro 16″, macOS 15.1

Posted on Nov 17, 2024 7:56 AM

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Question marked as Top-ranking reply

Posted on Nov 20, 2024 9:31 AM

@iHeimo, you are correct. The clips themselves if loaded to a new FCP 11 library are OK. The problem happens during the library upgrade of a prior FCP version to FCP 11. It also happens if you export a 10.8.1 library XML or project XML containing those clips and load that to an FCP 11 library.


So a workaround is to stay on 10.8.1. If work was already done on the FCP 11 library, you can export a prior-version (1.12) library XML and load that on 10.8.1. That should preserve all the clips and projects.


I tested Sony XAVC-S and XAVC-HS 100.0 fps and 120 fps files and those work OK after upgrading to FCP 11. Another user reports a Nikon Z9 clip turns black but he has not told us the clip specs or uploaded a clip to examine.


I am investigating how the problem happens....

25 replies

FCP 11 displays Lumix GH6 100fps files in black

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