Hey @050154 ,
That doesn't seem to be the right behaviour of the fingerprint sensor. I would suggest running a test to see if there is anything wrong with it. To do this launch the Samsung Members app> Get help> Diagnostics> Start> Fingerprint recognition.
I just noticed i have the same problem. Tab has been very low usage so i dont know how long its been this way. And i had location based lock free.
I just tried factory reset and it did not help. Sensor wont work and keeps telling me to clean it.
samsung diagnostic just says it has error.
Wish i could just rollback to ealier version to check if it works there
You can't run the fingerprint diagnostic without having a fingerprint registered. Which obviously you cannot do
same, and now have you fix it ?