r/MacOS • u/Flumm322 • 16h ago
Help Background image doesn't change

Hey guys,
Can anyone help me? I recently changed my background image settings to change the picture every 12 hours, but nothing changed and it shows the same picture every time. I asked an AI about it, and it said that this feature doesn’t work with the default Apple backgrounds, but only with pictures from my own library. I can’t believe that’s true. Can anyone help me fix this?
Thanks, y’all!
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u/kenthesaint 15h ago
For a lot of the built in Apple wallpapers the 12 hour timer never applies, because those are Dynamic Desktop HEIC files that shift with time of day instead of cycling a folder. Put a few of your own photos in a folder, pick that folder under Desktop and Dock, then turn on Change picture. Also check Low Power Mode, since it can pause wallpaper rotation.