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Black thumbprints for recent videos

The last batch of photos i uploaded from my iPhone 11 display black thumbprints only for the .mov type videos.


They display ok when i select them, and will subsequently display the thumbprints once i trim them.

But why suddenly this issue ?


Catalina on iMac

iMac 27″, macOS 10.15

Posted on Feb 28, 2021 8:20 AM

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Posted on Feb 28, 2021 5:18 PM

Ahem - it does help that I use the correct term - thumbnails not thumbprints


It is the thumbnails that are just black boxes for the HEVC videos (.mov) from my last import of photos from by iPhone (iOS 14.4) - imported via a USB connection.


They play ok once I select them. Doing even a short trim edit will cause the thumbnail to be rebuilt - which I have now done.

Just hope this does not appear again

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Question marked as Best reply

Feb 28, 2021 5:18 PM in response to Old Toad

Ahem - it does help that I use the correct term - thumbnails not thumbprints


It is the thumbnails that are just black boxes for the HEVC videos (.mov) from my last import of photos from by iPhone (iOS 14.4) - imported via a USB connection.


They play ok once I select them. Doing even a short trim edit will cause the thumbnail to be rebuilt - which I have now done.

Just hope this does not appear again

Black thumbprints for recent videos

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