Can the original be exported?Īre all of your photos currently in iCloud? Can you see the problematic photos on your iCloud web page at there? Make a test, if the original image file still exist by trying to export one of the problematic photos with "File > Export > Export unmodified original". That usually means, that the original image file cannot be accessed, perhaps because of the problem with iCloud syncing, or because the original file is missing completely. Do you know the reason for this behavior ? Strangely the rest of the photos did not rotate, they are "unrotatetable". The previews, thumbnails, caches inside the library are essential for the media Browser and for the cloud processes. Note: If you use iCloud Photo Library with Photos, this action will cause Photos to re-upload all your pictures.Īpple warns against using third-party applications to clean a Photos Library, just because of similar problems you encountered: Using third-party apps to remove duplicate photos might damage your Photos for macOS library - Apple Support This process recreates thumbnails for all the master images stored in your Photos library.
But do not overwrite any good backup of your library that you still may have. Nad you need to make a recent backup of your Photos Library, before you run the repair tool. But this will cause a completely new upload of your Photos Library to iCloud. If the rotation trick does not suffice, run the library repair tool. Test this first with a single photo, to see, if the thumbnail will reappear. Now enter the key combination ⌥⌘R to rotate them back.Now enter the key combination ⌘R to rate the photos.select a range of photos by selecting one photo, then holding down the Shift ⇧ key and clicking the last photo of the range.
#How to rebuild apple photos library how to
The simplest way to edit several photos at once is to ( How to Rebuild Thumbnails in a Photos Library) Editing a photo creates a new thumbnail, provided the original image files have not been lost as well. In some previous cases after damaging the Photos Library with CleanMyMac it helped to edit a photo without a thumbnail to recreate the thumbnail (I don't know what Onyx did to your library).
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