Passing variables to tasks correctly with loops

I'm new to ansible and I'm having trouble understanding loops. I have the following ansible playbook:

---
- name: Firewall Object Group Manager
  hosts: all
  gather_facts: yes

  tasks:

    - name: Manage ASA Object Groups
      asa_og:
        name: TEST_ANSIBLE_GROUP_1
        state: replace
        group_type: 
        host_ip:
          - 127.0.0.1
          - 127.0.0.2
        ip_mask:

My goal is to be able to manage multiple ASA object groups. Without loops my play would like like this

---
- name: Firewall Object Group Manager
  hosts: all
  gather_facts: yes

  tasks:

    - name: Manage ASA Object Groups
      asa_og:
        name: TEST_ANSIBLE_GROUP_1
        state: replace
        group_type: 
        host_ip:
          - 127.0.0.1
          - 127.0.0.2
        ip_mask:

    - name: Manage ASA Object Groups
      asa_og:
        name: TEST_ANSIBLE_GROUP_2
        state: replace
        group_type: 
        host_ip:
          - 127.0.0.3
          - 127.0.0.4
        ip_mask:

    - name: Manage ASA Object Groups
      asa_og:
        name: TEST_ANSIBLE_GROUP_3
        state: replace
        group_type: 
        host_ip:
          - 127.0.0.5
          - 127.0.0.6
        ip_mask:

...and so on

My understanding about ansible loops is that I should be able to call the task once and loop through variables. After several hours of research, my play now looks like this:

---
- name: Firewall Object Group Manager
  hosts: all
  gather_facts: yes
  vars:
    Object_Groups:
      - name: 'TEST_ANSIBLE_GROUP'
        host_ip:
          - 127.0.0.1
          - 127.0.0.2
        group_type: 'network-object'

      - name: 'TEST_ANSIBLE_GROUP_2'
        host_ip:
          - 127.0.0.3
          - 127.0.0.4
        group_type: 'network-object'

      - name: 'TEST_ANSIBLE_GROUP_3'
        host_ip:
          - 127.0.0.5
          - 127.0.0.6
        group_type: 'network-object'
  tasks:

    - name: Manage ASA Object Groups
      asa_og:
        name: "{{ item.0.name }}"
        state: replace
        group_type: "{{ item.0.group_type }}"
        host_ip: "{{ item.0.host_ip }}"
        ip_mask: "{{ item.0.ip_mask | default([]) }}"
      loop:
        - "{{ Object_Groups }}"

Here is the debug from the when I run the play:

$ ANSIBLE_STDOUT_CALLBACK=debug ansible-playbook -i inventory.yml -k stackof.yml -v -l FW01
Using /etc/ansible/ansible.cfg as config file
SSH password:

PLAY [Firewall Object Group Manager] **********************************************************************************************************************************

TASK [Gathering Facts] ************************************************************************************************************************************************
ok: [FW01]

TASK [Manage ASA Object Groups] ***************************************************************************************************************************************
changed: [FW01] => (item=[{u'name': u'TEST_ANSIBLE_GROUP', u'group_type': u'network-object', u'host_ip': [u'127.0.0.1', u'127.0.0.2']}, {u'name': u'TEST_ANSIBLE_GROUP_2', u'group_type': u'network-object', u'host_ip': [u'127.0.0.3', u'127.0.0.4']}, {u'name': u'TEST_ANSIBLE_GROUP_3', u'group_type': u'network-object', u'host_ip': [u'127.0.0.5', u'127.0.0.6']}]) => {
    "ansible_loop_var": "item",
    "changed": true,
    "commands": [
        "object-group network TEST_ANSIBLE_GROUP",
        "network-object host 127.0.0.2",
        "network-object host 127.0.0.1",
        "no network-object host 127.0.0.8",
        "no network-object host 127.0.0.7",
        "no network-object host 127.0.0.5"
    ],
    "item": [
        {
            "group_type": "network-object",
            "host_ip": [
                "127.0.0.1",
                "127.0.0.2"
            ],
            "name": "TEST_ANSIBLE_GROUP"
        },
        {
            "group_type": "network-object",
            "host_ip": [
                "127.0.0.3",
                "127.0.0.4"
            ],
            "name": "TEST_ANSIBLE_GROUP_2"
        },
        {
            "group_type": "network-object",
            "host_ip": [
                "127.0.0.5",
                "127.0.0.6"
            ],
            "name": "TEST_ANSIBLE_GROUP_3"
        }
    ]
}

PLAY RECAP ************************************************************************************************************************************************************
FW01                 : ok=2    changed=1    unreachable=0    failed=0    skipped=0    rescued=0    ignored=0

It looks like Ansible can see all the variables but it's not running the task again using the variables I defined for the next object group, then again for the third. I can't seem to figure out what I'm doing wrong.

Once I can properly loop through the variables, my intensions are to place the variables in a vars/main.yml file so I can manage all the object group variables in one place.

As a reference, here is the link to the Ansible module I'm using: https://docs.ansible.com/ansible/latest/modules/asa_og_module.html#asa-og-module