Is anyone having an issue where the iPhone (64GB 6 plus in my case) running iOS 9 beta displays the running out of storage dialog by itself? Mine has done it on four or five separate occasions in beta 1, 2 and 3. Haven't encountered this in beta 4 yet. A simple reset solves the problem and all unused storage is free again. When this is in effect all the apps show their normal sizes and the remaining storage just seems to vanish into thin air.