Microsoft is pushing out a Store update for those using Windows 10 or Windows 10 Mobile in the Fast Ring (Redstone). Part of the new Store layout was causing issues related to pulling down screenshots from apps and games. As such, it was temporarily removed until Microsoft could fix the problem.
Build 11606.1000.43 is now available up from 11605.1000.113, and it brings back app and game screenshots as well as overall improved performance when the app grabs data from the cloud.
Full story from the WindowsCentral blog...