I disagree that it's not useful—I have a really long password and suck at typing, so being able to mash the fingerprint sensor is really helpful. But yes, it i

I disagree that it's not useful—I have a really long password and suck at typing, so being able to mash the fingerprint sensor is really helpful. But yes, it is very frustrating that every time there's a system update you have to redo it.