Please fill in the following information:

Issue description
since ansible navigator has the inventory file defined as 'inventory.yaml'
The instruction
"Delete any variable information other than the ansible_ssh_private_key_file and ansible_user variables from the inventory.yml file, and then move those definitions to the all group of managed nodes." - should also use the same filename extension , ie, inventory.yaml.

see attached screenshot.

Steps to reproduce:

Workaround:

Expected result: