The earliest recollection of this bug is traced back to PAN-OS 11.0.3 - July 22, 2025. ( PA-3410, PA-3420, PA-3430, PA-3440, PA-5410, PA-5420, PA-5430, and PA-5440 firewalls ) By enabling Lockless QoS feature , a slight degradation in App-ID and Threat performance is expected. For more information: https://docs.paloaltonetworks.com/pan-os/11-0/pan-os-release-notes/pan-os-11-0-3-known-and-addressed-issues/pan-os-11-0-3-known-issues https://docs.paloaltonetworks.com/pan-os/11-0/pan-os-release-notes/pan-os-11-0-4-known-and-addressed-issues/pan-os-11-0-4-known-issues https://docs.paloaltonetworks.com/pan-os/11-0/pan-os-release-notes/pan-os-11-0-5-known-and-addressed-issues/pan-os-11-0-5-known-issues https://docs.paloaltonetworks.com/pan-os/11-0/pan-os-release-notes/pan-os-11-0-6-known-and-addressed-issues/pan-os-11-0-6-known-issues