The earliest recollection of this bug is traced back to PAN-OS 11.1.10 - April 14, 2026. This bug is fixed in PAN-OS versions 11.1.10, 11.2.11, 11.2.10-h2, 11.2.7-h8. Fixed an issue where, when creating an interface, an error occurred when you clicked OK without providing a value in the Tag field even though the field was not displayed as mandatory. For more information: https://docs.paloaltonetworks.com/pan-os/11-1/pan-os-release-notes/pan-os-11-1-10-known-and-addressed-issues/pan-os-11-1-10-addressed-issues https://docs.paloaltonetworks.com/pan-os/11-2/pan-os-release-notes/pan-os-11-2-10-known-and-addressed-issues/pan-os-11-2-10-h2-addressed-issues https://docs.paloaltonetworks.com/pan-os/11-2/pan-os-release-notes/pan-os-11-2-11-known-and-addressed-issues/pan-os-11-2-11-addressed-issues https://docs.paloaltonetworks.com/pan-os/11-2/pan-os-release-notes/pan-os-11-2-7-known-and-addressed-issues/pan-os-11-2-7-h8-addressed-issues