User-Data for GitHub Enterprise Server AMI - on AWS, not running.

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Hello - Testing AMIs via AWS EC2, GitHub Enterprise images dont seem to run user-data as expected.

Tried this on a few different versions, but primary one we are utilize:
GitHub Enterprise Server 3.7.4
ami-0e5f663a9f33d284e
us-east-1

Image is Debian based - when attempting to attach user-data to an instance from the AMI to install the AWS-SSM-Agent [1], seems to fail on each run (by fail - it doesnt seem to run).
Cloud-Init-Output-workingDEB.txt

A few example user-data scripts: (ive also tried running it on 'each start' of the VM - no luck)
#!/bin/bash
apt-get update
apt-get install -y gpg wget

Import the Amazon SSM Agent GPG key

wget https://s3.amazonaws.com/amazon-ssm-us-east-1/latest/debian_arm64/amazon-ssm-agent.deb.sig
wget https://s3.amazonaws.com/amazon-ssm-us-east-1/latest/debian_arm64/amazon-ssm-agent.deb
gpg --import amazon-ssm-agent.deb.sig

Verify the authenticity of the package

gpg --verify amazon-ssm-agent.deb.sig amazon-ssm-agent.deb

Install the Amazon SSM Agent

dpkg -i amazon-ssm-agent.deb
apt-get install -f -y

Start the Amazon SSM Agent

systemctl enable amazon-ssm-agent
systemctl start amazon-ssm-agent

.#!/bin/bash
.# Install the required packages
apt-get update
apt-get install -y gpg wget
.# Import the Amazon SSM Agent GPG key
wget https://s3.amazonaws.com/amazon-ssm-us-east-1/latest/debian_amd64/amazon-ssm-agent.deb.sig
wget https://s3.amazonaws.com/amazon-ssm-us-east-1/latest/debian_amd64/amazon-ssm-agent.deb
gpg --import amazon-ssm-agent.deb.sig
.# Verify the authenticity of the package
gpg --verify amazon-ssm-agent.deb.sig amazon-ssm-agent.deb
.# Install the Amazon SSM Agent
dpkg -i amazon-ssm-agent.deb
apt-get install -f -y
.# Configure the Amazon SSM Agent
echo "server_endpoint: https://ssm.us-east-1.amazonaws.com/" >> /etc/amazon/ssm/amazon-ssm-agent.json
echo "region: us-east-1" >> /etc/amazon/ssm/amazon-ssm-agent.json
.# Start the Amazon SSM Agent
systemctl enable amazon-ssm-agent
systemctl start amazon-ssm-agent

Running any variation on the above on any Debian based image - shows success installing/setting up the AWS SSM Agent, but on each run of any GH Enterprise image - we do not see the agent install or present whatsoever.

Viewing Cloud-init logs, I can see a similar set up for both Debian and GH images, but we see no signs of the user data running.

I have an example output of GH cloud-init logs vs the Debian, but am not entirely sure why the GH image isnt executing as it should.

Would anyone have any insight on this? I went through the GH documentation for Enterprise Linux images, but not too much info is present.

[1]https://docs.aws.amazon.com/systems-manager/latest/userguide/agent-install-deb.html

cloud-init-GH.txt
cloud-init-output-GH.txt
Cloud-Init-Output-workingDEB.txt