new update sequioia 15.0 stops my dynamic background on my imac mini No more dynamic screen background by startup after an new upgrade to Seqiuia 15.0
No dynamic background after upgrade to Sequoia 15.0 on my Mac mini
Choose an image as your wallpaper.
From the pop-up menu next to the current wallpaper thumbnail, choose an appearance:
- Automatic: Switches from light to dark at sunset, based on your current location.
- Dynamic: Gradually brightens and darkens, based on the time of day for your current location.
- Light (Still): The desktop displays a static, light version of the picture.
- Dark (Still): The desktop displays a static, dark version of the picture.
If 
appears next to an Dynamic Wallpaper name, you need to click the image to download and use it.