The earliest recollection of this bug is traced back to PAN-OS 10.1.0 - July 29, 2024. ( Panorama plugins ) The IP address-to-tag mapping information registered on a firewall or virtual system is not deleted when you remove the firewall or virtual system from a Device Group. Workaround: Log in to the CLI on the firewall and enter the following command to unregister the IP address-to-tag mappings: debug object registered-ip clear all . 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