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Can't see preview thumbnail on mp4 files.

Hi!


I was moving some files from my external hdd to my main hdd. And when I am looking on the mp4 files I can not see the thumbnail on the file. Some files I can see the preview thumbnail and some I can not. I have turned on "show preview" or whatever it's called. Any thoughts?


MacBook Pro with Touch Bar

Posted on Aug 1, 2019 1:43 AM

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Question marked as Top-ranking reply

Posted on Aug 1, 2019 1:01 PM

Hello,


Macintosh generates thumbnails based on the primary frame of a video file. Do the video files start with a black first frame?

5 replies

Can't see preview thumbnail on mp4 files.

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