Anyone else having issues? It registers a fingerprint eventually, and works the first time I unlock the phone. But after that it doesn't work at all. Tried three different fingerprints. And do you use yours for unlocking? I don't have a need to lock my phone so I probably won't use it for that. But I guess it needs to work for Apple Pay. Also, the home button is sapphire, right? Anyone use anything to protect it (even though it's not necessary)? Would one of those home button protectors (flat, clear) interfere with Touch ID?