Delegate_to play on awx

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I have a playbook that copies files to remote hosts whose hostnames are dynamically derived in the playbook. if the play is run from the control node it works perfectly if I run from awx I get an error on the delegation

- name: Copy app to remote
  copy:
    src: '{{ path_local_to_deploy }}/{{ app_to_deploy }}'
    dest: '/tmp/{{ app_to_deploy }}'
    owner: root
    group: root
    mode: 0644
    remote_src: true
  delegate_to: mvlmgmt002.sidi.mpi.it
  become: true
  tags: action

I also tried using delegation on the control node but it fails to copy the files to the remote hosts but copies to /tmp of the control node