Unable to execute ansible-playbook and ansible ad-hoc commands

Issue

• The ansible-playbook is failing during Gathering Facts

TASK [Gathering Facts] *************************************************************************************************************************
Wednesday 26 March 2020  12:00:00 +0000 (0:00:00.058)       0:00:00.776 *******
fatal: [node1.example.com]: FAILED! => {"msg": "Timeout (32s) waiting for privilege escalation prompt: "}

• It is not possible to access nodes with ansible ad-hoc commands

$ ansible all -i /etc/ansible/hosts -m ping
Enter passphrase for key '/root/.ssh/id_rsa': Enter passphrase for key '/root/.ssh/id_rsa': Enter passphrase for key '/root/.ssh/id_rsa': Enter passphrase for key '/root/.ssh/id_rsa': Enter passphrase for key '/root/.ssh/id_rsa': Enter passphrase for key '/root/.ssh/id_rsa': Enter passphrase for key '/root/.ssh/id_rsa': 
Enter passphrase for key '/root/.ssh/id_rsa':
Enter passphrase for key '/root/.ssh/id_rsa':
Enter passphrase for key '/root/.ssh/id_rsa':

node1.example.com | FAILED! => {
    "msg": "Timeout (32s) waiting for privilege escalation prompt: "
}

node2.example.com | FAILED! => {
    "msg": "Timeout (32s) waiting for privilege escalation prompt: "
}

• The SSH key file is protected by a passphrase
• The ansible_ssh_user is not root as default
• Ansible is using the wrong root's SSH key instead of the ansible ssh user key