Upon running ansible-playbook main.yml on a control node, I get this error:

Ansible ec2-user $ ansible-playbook main.yml
ERROR! conflicting action statements: fail, display_skipped_hosts

The error appears to be in '/home/ec2-user/appstore-playbooks/Ansible/roles/deployEC2/tasks/main.yml': line 27, column 4, but may
be elsewhere in the file depending on the exact syntax problem.

The offending line appears to be:

• name: View all existing Ec2 instances
  ^ here

The control node appears to be correctly configured as I was able to run:

ansible-playbook -e 'vars_file=[redacted].yml ec2_name=Ansible AWS_REGION=us-east-1' just_the_facts.yml

and get the expected output.

ansible --version returns:

ansible 2.9.6
config file = /home/ec2-user/appstore-playbooks/Ansible/ansible.cfg
configured module search path = ['/home/ec2-user/.ansible/plugins/modules', '/usr/share/ansible/plugins/modules']
ansible python module location = /usr/local/lib/python3.7/site-packages/ansible
executable location = /usr/local/bin/ansible
python version = 3.7.6 (default, Feb 26 2020, 20:54:15) [GCC 7.3.1 20180712 (Red Hat 7.3.1-6)]