Old Apps and iOS 7.06 and 7.1

Hi guys,

I’ve ran into an issue where my old unity3d apps are greyed out on my ipad. It seems this happened after upgrading the pad’s OS to 7+, although i’m not sure.

I’ve tried installing them over and over, factory reset etc… to no avail.

Do I also need to “upgrade” the apps? or is the greyed out thing a totally separate issue?

As always any and all help is much appreciated.

http://apple.stackexchange.com/questions/113427/what-do-grayed-out-app-icons-mean-in-ios-7
seems like iOS bug