Fingerprint sensor awakes with message "keep your finger on the sensor a little longer" without touching the phone.
Im using the "original" screen cover and double tap to wake up off, screen sensibility off.
The screen is clean and the phone keeps waking up with the fingerprint sensor on and showing the keep your finger.. message on the screen.
And if I have double tap wake up On, the phone is always waking up on the pocket (but this is being already discussed on the threads)
Thanks for checking On Body Detection settings.
Try a soft reboot, to do this, press and hold the Power and Volume Down buttons until your phone restarts.
Has it been happening since you got your phone or has it started recently?
Can you do a quick hardware test?
Head over to the dial pad and type in *#0*#, then select 'Sensor Hub Test', this will lock your screen, unlock your phone and then let me know what it says on the screen following the test.
Thanks for checking, I've got a few more tests for you to do:
In the hardware test menu (*#0*#) select 'Sensor'
Let me know the results.