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I have hundreds of videos that were taken on my iPhone in my photo library in my Mac mini. None of them will play. What gives?
And what happened to, "It just works."
Mac mini, macOS 13.1
Can you help with more detail? For instance, what happens when you try to play an old video? Do you see it in the Thumbnail view? Will it expand when you double click on on it? Will it open in Edit? Do you get an error message? What is the format of the video file-- mov, m4v, etc? Does this happen with all videos, or just old ones, or just some of them? Can you export a video file, and will the export play?
Where is your Photos Library stored? is it in your Pictures folder or on an external hard drive? If on an external drive, how is that drive formatted? Do you use iCloud to sync your devices? If so, do you have "Optimize Mac Storage" checked in Photos preferences? Is this your system library? Do you have "Copy Items" checked in Photos preferences?
Have you tried these things?
Start up your Mac in safe mode - Apple Support
The idea is to find out if the problem is with the Library, with your account, with particular files, or with caches and login items, and stuff like that. One of these steps may fix the problem, but their failure to work is also diagnostic.
Can you help with more detail? For instance, what happens when you try to play an old video? Do you see it in the Thumbnail view? Will it expand when you double click on on it? Will it open in Edit? Do you get an error message? What is the format of the video file-- mov, m4v, etc? Does this happen with all videos, or just old ones, or just some of them? Can you export a video file, and will the export play?
Where is your Photos Library stored? is it in your Pictures folder or on an external hard drive? If on an external drive, how is that drive formatted? Do you use iCloud to sync your devices? If so, do you have "Optimize Mac Storage" checked in Photos preferences? Is this your system library? Do you have "Copy Items" checked in Photos preferences?
Have you tried these things?
Start up your Mac in safe mode - Apple Support
The idea is to find out if the problem is with the Library, with your account, with particular files, or with caches and login items, and stuff like that. One of these steps may fix the problem, but their failure to work is also diagnostic.
It looks like the data base has lost the connection between the originals and the edits. Certainly try repairing the Library, accessing with another account, exporting a video, and a safe start.
But the fix could depend on the answers to those questions.
This is what happens when attempting to open any video:
I have hundreds of videos that were taken on my iPhone in my photo library in my Mac mini. None of them will play.
