please advise - Not generating logs after with ansible log_group

I am unable to generate logs with the playbook. Please advise?

ansible.cfg
[defaults]
inventory = ./hosts

[callback_log_plays]
log_folder = /var/log/ansible/hosts
env:ANSIBLE_LOG_FOLDER

host file

[windows]
windows machine@abc.com

[windows:vars]
ansible_connection = winrm
ansible_ssh_port = 5986
ansible_winrm_transport = kerberos
ansible_winrm_server_cert_validation = ignore
validate_certs = false

If you have an example for the playbook and other config to log ansible-recap, please share

Any updates are appreciated?