I've had Windows 10 for a while and have had fun with the programs ability to "slideshow" the desktop backgrounds (wallpaper) but, a recent upgrade has limited the number of active wallpapers to 20. I have about 50 in the file titled DesktopBackground but the Personalization/DesktopBackground only sees 20 of the pictures. It used to work but a recent upgrade seems to have changed the access to a maximum of 20. Is this the case or am I doing something wrong? To get to the slideshow manager I access it via Run window then type in;
"control /name Microsoft.Personalization /page pageWallpaper"

Any ideas how to get access to more than 20 wallpapers? Maybe there is a 3rd party app?

Jim Sorensen