The earliest recollection of this bug is traced back to PAN-OS 10.1.14 - February 19, 2025.
This bug is fixed in PAN-OS versions 10.1.14.
( Firewalls only in FIPS mode only ) Fixed an issue where the firewall repeatedly displayed the error message Cipher decrypt-final failure .
For more information:
https://docs.paloaltonetworks.com/pan-os/10-1/pan-os-release-notes/pan-os-10-1-14-known-and-addressed-issues/pan-os-10-1-14-addressed-issues