I've just started having this problem. Usually when I install an app, App Store automatically closes and it takes me to the app. But recently, when I choose an app to install, it doesn't do that plus the app doesn't show up on my iPad. In the App Store I see that it's greyed out with Installed written which means the app is somewhere on my iPad. I did a search on my iPad and it shows that the app is there but i can't find it, it's as though the app is hidden. I tried installing a lot of apps, same thing, App store says installed but I can't find it on my iPad. I've tried rebooting twice as well. Anyone experienced this issue?