The earliest recollection of this bug is traced back to PAN-OS 8.1.13 - January 09, 2024. This bug is fixed in PAN-OS versions 9.1.2, 8.1.13. Fixed an issue in the firewalls where some Dynamic Address Groups pushed from Panorama were missing member IP addresses. Fixed an issue on the firewalls where some Dynamic Address Groups pushed from Panorama were missing member IP addresses. For more information: https://docs.paloaltonetworks.com/pan-os/8-1/pan-os-release-notes/pan-os-8-1-addressed-issues/pan-os-8-1-13-addressed-issues https://docs.paloaltonetworks.com/pan-os/9-1/pan-os-release-notes/pan-os-9-1-addressed-issues/pan-os-9-1-2-addressed-issues