I have no issue with this. I work at a place where I carry a card and have to use fingerprint scanners. Fingerprint scanners are very moody. I suspect temper

I have no issue with this. I work at a place where I carry a card and have to use fingerprint scanners. Fingerprint scanners are very moody. I suspect temperature is one factor, coming in from the cold with cold fingers. There are occasions where the things just won't allow me in. They're also revolting. Sometimes you put your finger on and it slides in some sort of oily goop. On other occasions you can feel a roughness of some dried crud. Undoubtedly a viral and bacterial hot spot.