overcloud node import shows node already registered for a new baremetal box

[swogat pradhan]

Hi,
I have 2 separate baremetal boxes, 1 is dell and the other is of lenovo make.
I have created 2 separate instanenv.json files for both of them, and tried importing.

the dell box was imported earlier and is now part of the cloud and now when i am trying to import the lenovo box it gives me the <uuid of dell> is alredy registered.

I am not sure why this is coming when they both have separate ip addresses and even mac.

json files:

(undercloud) [stack@hkg2director ~]$ cat dcn01/hci3.json
{
    "nodes": [

{
            "name": "HCI3",
            "pm_type": "ipmi",
            "ports": [
                {
                    "address": "90:B1:1C:4F:CA:3B",
                    "physical_network": "ctlplane"
                }
            ],
            "cpu": "24",
            "memory": "114688",
            "disk": "2602",
            "arch": "x86_64",
            "pm_user": "root",
            "pm_password": "password",
            "pm_addr": "172.25.180.57",
            "_comment": "HCI 3"
        }
     ]
   }

(undercloud) [stack@hkg2director ~]$ cat dcn02/ceph3.json
{
    "nodes": [
{
            "name": "ceph3",
            "pm_type": "ipmi",
            "ports": [
                {
                    "address": "38:68:DD:8D:9E:4A",
                    "physical_network": "ctlplane"
                }
            ],
            "cpu": "48",
            "memory": "65536",
            "disk": "558",
            "arch": "x86_64",
            "pm_user": "root",
            "pm_password": "password",
            "pm_addr": "10.11.11.12",
            "_comment": "ceph 3"
        }
     ]
}