I get this error from the viewer but if I go into "personalize", I can set whatever image I want. What's up with the image viewer? It gives the option to set as lock screen or backgroundor Photo Tile but unable to do it. I'm using RS1 release 160506-1708 but its happened with other builds as well.
None are corrupt. If I got the normal route to set a background, it works. But using the image viewer simply doesn't work. Maybe its a beta thing but not even with the version I use at work, which is not Redstone, it doesn't work.