I have had this issue for a little while now, just been living with it. anyway today is the day! So on start up like normal, power on button..... I get the option to use the fingurescanner as a password to unlock my screen. It did work fine! and now it doesnt let me use it, just get the sound of the scan but nothing happens.
I have tried updating the fingurescanner and my prints a few times. the scanner does work as it allows me to use it for other passwords on the system just not for the main password / so weird, driving me nuts, if anyone has any suggestions I would be so happy!!