Hi
sriram_rog5s,
Please try the below and revert back:
Try removing the current fingerprint and re-adding?
Run SMMI test to check if there is any issue with the hardware
Check Release note section and check with your phone if it is on latest software version.
How to Enter SMMI_TEST (test hardware)
Go to Calculator=>type " .12345+= "
you will be entered to SMMI_TEST