Awx.awx.export from AWX 21.0.0 fails using awx.awx.import into AWX 24.6.1 with "Failed to import assets argument of type 'NoneType' is not iterable"

When i take the output file from the export playbook below, and pass it into the import playbook below, the job run fails immediately with the following message:

fatal: [localhost]: FAILED! => {“changed”: false, “msg”: “Failed to import assets argument of type ‘NoneType’ is not iterable”}

Note - this happens whether i export a single resource type or the all the resource types. It doesn’t matter.

The input file looks well formed and i can see no issues with it. There is no other information available regarding the error.

I am running both systems on Ubuntu using K3s as the kubernettes engine.

Happy to provide any more information you may need. Any help would be huge at this point,

Export

    - name: Export all       
      awx.awx.export:
        controller_host: ‘{{ old_host}}’
        validate_certs: false
        controller_username: ‘{{ my_user}}’
        controller_password: ‘{{ my_password }}’ 
        all: true
      register: export_all
      delegate_to: localhost

    - name: Save export to file
      copy:
        content: "{{ export_all | to_nice_yaml(indent=2) }}"        
        dest: “{{my_output_file}}”
      delegate_to: localhost

Import

    - name: Include vars from assets_file_to_import
      ansible.builtin.include_vars:
        file: “{{my_output_file}}”
         
    - name: Import all exported assets
      awx.awx.import:
        controller_host: ‘{{ new_host}}’
        validate_certs: false
        controller_username: ‘{{ my_user}}’
        controller_password: ‘{{ my_password }}’ 
        assets: "{{ assets }}"
      register: import_output
      delegate_to: localhost