So I decided to test the fingerprint sensor. I've had it disabled since the middle of December cuz it wasn't working well, but with fixes in place, felt like the time to test again.
I spent my time recording three fingerprints, imagining all the digits I might use to unlock it. Locked, then tried, none would work. Okay, let's reboot, maybe it needs that. Nope, now it doesn't have my fingerprints saved anymore. Try again with just one fingerprint. Same deal; doesn't work, reboot it disappears.