I installed Android Pay in my S8+ and every so often it disapears from my screen. It also happens if i switch off my mobile. I then have to go back into the Play store and it states that it is disabled. I have to enable it for it to reappear in my mobile. I used to have it instaled in my S7 edge and had no problems. I cannot install Samsung Pay as it has not yet come out in Europe. Is this happening to anyone else?