I turned off my auto brightness and set my brightness to low. I immediately noticed that whenever I press the lock/unlock button from the sleep state, the wallpaper screen for an instant shows the background behind it. Not a big deal but still annoying. Also sometimes the alarm symbol shows up in the wrong place but corrects itself quickly.
Confirmed. I've been getting this too. I turned off auto brightness because I felt the low setting is far too low sometimes. Since disabling the auto setting, the screen has had its UI elements pop in every time I wake the phone up. Usually showing the last app/start screen, background, then the date and time.
They should really just adjust the brightness based on a slider of variables, and not 3 fixed values.