ANSIBLE : NO MORE HOSTS LEFT v2.1.1.0-0.2.rc2? Or am I failing to build the right RPM?

Hi All,
New to ANSIBLE and I have been getting the dreaded: NO MORE HOSTS LEFT , when I run playbooks.

I read here: https://github.com/ansible/ansible/issues/16364 That it would be resolved in v2.1.1.0-0.2.rc2.

So I created a quick RPM for v2.1.1.0-0.2.rc2

yum -y install git asciidoc rpm-build python2-devel
cd /usr/src
git clone https://github.com/ansible/ansible.git --recursive
cd ansible
git checkout v2.1.1.0-0.2.rc2
git submodule update --init
make rpm
yum install rpm-build/ansible-2.1.1.0-0.git201607072025.eff49c9.HEAD.el7.noarch.rpm

rpm -qa | grep -i ansible
ansible-2.1.1.0-0.git201607072025.eff49c9.HEAD.el7.noarch
[root@ans01 ansible]# rpm -qia | grep -i ansible
Name : ansible
Source RPM : ansible-2.1.1.0-0.git201607072025.eff49c9.HEAD.el7.src.rpm
URL : http://www.ansible.com
Ansible is a radically simple model-driven configuration management,
multi-node deployment, and orchestration engine. Ansible works

Am I building the wrong RPM or missing a step ? Or is this still not fixed?

If so can you please explain?

Thank you or your time and patience.

Just an FYI I am using this Role:

https://galaxy.ansible.com/geerlingguy/jenkins/

I have gone through the role and my playbook files.

And there is no definition of “serial” in the files so I am not sure why the error of “NO MORE HOSTS” is still appearing?

My Playbook below:

cat /etc/ansible/playbooks/geerlingguy.jenkins/geerlingguy.jenkins.yml