Regardless of which version of iOS I run (official release or beta, makes no difference), I’ve consistently experienced the following issue with my lock screen wallpaper. When using a saved image or screen shot as lock screen wallpaper, an iPhone X/XS will experience the following behavior: upon waking the phone, it will fade into a solid black wallpaper for half a second, before switching to the custom wallpaper. I’ve noticed that this doesn’t seem to happen with actual photos taken with the iPhone camera, but it always happens with saved images or screen shots. No clue why it happens, but it’s forced me to always use a solid black wallpaper on my lock screen because the transition is too annoying for me to see every single time my phone wakes up. It just bothers me. Here’s a video to illustrate what’s happening: https://share.icloud.com/photos/0iawiwEecntpKY-y8X3bJkc2w#Washington_-_Downtown And here’s the wallpaper used in that video so you can try it yourself. Set this solid purple image as your lock screen and you should see the same awkward, half-second transition from black to the custom image. Any clue why this is happening? I’ve got several friends who have the same issue.