Lock Screen Wallpaper black only

I looked for an answer here sorry if I missed it.
I have a new phone (no desire to jailbreak). I found that once I changed the lock screen (very first one with slide lever), it never displayed anything but black after that. I restored the phone to factory new phone (without my photos or settings). The raindrops wallpaper came back to the lock screen. Like new!!

So I synched only a half dozen wallpapers and set one, lock screen goes black. I set wallpaper manually back to raindrops and remove my downloaded wallpapers. Rebooted phone...still no change and black lock screen back, raindrops displays in thumbnail but (first) lockscreen is black.
What is it about changing the lockscreen that is making it black only from then on.