After unlock, the sensor reapperaing
I am not using whatsapp finger print security,(app lock)
Reboot your phone once
Reboot your phone or try factory reset
Reboot and try factory reset.
Before doing a factory reset, do a backup.
I already resetted
Nb: some times double tap not wrking
All about OxygenOS – Feb 2021
by Gary C., 2021-03-01