is primarily a registry value and a system status indicator used by Windows (specifically Windows 10 and 11) to track the state of the lock screen background image.
Ensure that the System account has read access to the Registry keys mentioned above. If the OS can't read the status, it can't display the image. Conclusion lockscreenimagestatus
If the status isn't updating, you can use PowerShell (as Admin) to reset the feature: Get-AppxPackage -allusers *ContentDeliveryManager* | foreach Add-AppxPackage "$($_.InstallLocation)\AppxManifest.xml" -DisableDevelopmentMode -Register is primarily a registry value and a system