I used my goggles earlier in the day and all was fine. Later in the day I put them on and I noticed one of the items was blank on the home screen. I later found out it was Milk VR and I couldn't find it in the Library or the store. When I look in the oculus app on the phone it is there and appears fine. There is nothing that says uninstall or reinstall that I can find. Does anyone know how to fix this problem ?