Hi all, I am running into a problem installing an app - Facebook Messenger - that I have never encountered before. I downloaded the free app from the App Store, and then it would show the shaded icon on the home screen for installation as it always does for a brief time about 2 seconds, then it would completely disappear. When I go back to the App Store to redownload the app, the cloud icon appears because I "bought" it already, and if I click the cloud icon to redownload, the same thing happens. When I went on my iPad and clicked the cloud icon, I was able to install the app with no problems. I'm running latest OS for iPhone 4 7.1.2, and it meets the requirements for the Facebook Messenger App. I've tried restarting my iPhone a few times, and still it does not work. I don't want to restore my iphone, I think that will be last and final option. Also, I've tried downloading and installing new apps after this problem to maybe fix an app store glitch, and I am able to install other new apps, just not this Facebook Messenger one.