The earliest recollection of this bug is traced back to PAN-OS 10.2.10-h12 - March 11, 2025. This bug is fixed in PAN-OS versions 10.2.10-h12, 10.2.13-h3, 11.1.2-h9. Fixed an issue where the ECMP FIB update on the dataplane didn't clear the pending change flag, which caused the next non-ECMP FIB update to miss the latest generation ID and age out after 5 minutes Fixed an issue where the ECMP FIB update on the dataplane didn't clear the pending change flag, which caused the next non-ECMP FIB update to miss the latest generation ID and age out after 5 minutes. Fixed an issue where the ECMP FIB update on the dataplane did not clear the pending change flag, which caused the next non-ECMP FIB update to miss the latest generation ID and age out after 5 minutes. For more information: https://docs.paloaltonetworks.com/pan-os/10-2/pan-os-release-notes/pan-os-10-2-10-known-and-addressed-issues/pan-os-10-2-10-h12-addressed-issues https://docs.paloaltonetworks.com/pan-os/10-2/pan-os-release-notes/pan-os-10-2-13-known-and-addressed-issues/pan-os-10-2-13-h3-addressed-issues https://docs.paloaltonetworks.com/pan-os/11-1/pan-os-release-notes/pan-os-11-1-2-known-and-addressed-issues/pan-os-11-1-2-h9-addressed-issues