Updated Win 10 to 1903 and background won't change

When I first moved to Windows 10, I was really annoyed that it kept changing my background automatically. I recently learned this was called Windows Spotlight, at least for the lock screen. For me, the background for both my lock screen and desktop would change every now and then and as annoying as I was originally, I have grown to love it and look forward to my computer showing me different scenery around the world.

I updated to 1903 this week and my desktop background is now a lightened version of the windows 10 default background. I've been searching for 2 days online and there are posts from 2016-2018 about all the manual things you can do to make your desktop background use images from the lock screen background. i don't get ittt... how do i get it to work the way it did again??