The earliest recollection of this bug is traced back to PAN-OS 11.1.4-h4 - April 16, 2026. This bug is fixed in PAN-OS versions 11.1.4-h4. Fixed an issue on the web interface where the following error message was incorrectly displayed for an IKE gateway with a valid configuration: ikev2->pq-ppk->negotiation-mode is invalid . For more information: https://docs.paloaltonetworks.com/pan-os/11-1/pan-os-release-notes/pan-os-11-1-4-known-and-addressed-issues/pan-os-11-1-4-h4-addressed-issues