why do my google photos not display in full

[AC Question]

Got the HTC10 which I've already had to restore due to dispatch with cameras lens issue and now when I view my thumbnails or photos some only partially display and the rest of the screen is a gray box. Can sometimes get round by opening the photo, double tap and then set back to normal size to see it. When I upload to facebook it loads half a photo. HTC just said FACTORY RESET. Not again!