If you delete a target URL, its associated URL in the Attack Surface view will be deleted. However, if the hostname you moved or deleted resolves to an IP that’s still in the list of targets in your current workspace, the associated data in your Attack Surface view will not be removed.
The same applies if the IP you moved or deleted is that of a hostname that’s still included in the list of targets in your current workspace.
For example, if you add the targets 8.8.8.8 and dns.google.com, and then delete one of them, the entry will remain in your Attack Surface view since the IP is tied to a hostname still in your list of targets.