I did perform your instructions, power off etc etc. I uninstalled and reinstalled. The app downloads, then installs. When opening the app I just get a quick glimpse of a white outlined monkey for a few seconds then a black screen in front of me but if I look to the right side it looks like a cave with coloured walls??.. I have not done a factory reset!!! All other apps (several) I have installed are fine so, a factory reset would remove all that I have installed etc and is not an option for me and I do not think is required. I have uninstalled it.