More and more apps are now using SafetyNet API with their apps. Google has offered this API to all developers so that they can check whether the device has modified system files or not. And, that is why apps like Android Pay or Pokemon Go won’t work on your rooted phones. Not just the rooted phones but if you have custom ROM installed then chances are there that the system files are already modified. However, if you have rooted Redmi Note 3(MIUI 8) with SuperSU then you can switch to Magisk Manager to get systemless root with the following steps.