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BugZero updated this defect 288 days ago.
The earliest recollection of this bug is traced back to PAN-OS 8.1.9 - January 09, 2024. This bug is fixed in PAN-OS versions 8.1.9. Fixed an issue where IPv4 BGP routes were missing from the routing table and FIB after a failover event. For more information: https://docs.paloaltonetworks.com/pan-os/8-1/pan-os-release-notes/pan-os-8-1-addressed-issues/pan-os-8-1-9-addressed-issues