Quote:
Originally Posted by sprite7
Solved the problem by re-saving the cover image file. Probably some jpeg file metadata/format incompatibility. Now it's showing in sleep screen.
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I have been researching causes of failure for the lockscreen cover feature. One thing I found is that the cover image must be JPEG with JFIF metadata. If the image instead has EXIF metadata then the cover will not display on the lock screen.
Some image manipulation software, such as Photoshop Elements, create files with EXIF metadata and will cause problems for this feature.