Azure repo within Foreman

Hey all,

I am currently trying to install Azure ARC across the servers.
I have added in the Key microsoft.asc from the following: Index of /keys/
I have then added in the repository: Index of /centos/7/prod/
This has successfully added and has 1284 packages attached.

My issue is when I have added this to the activation key for my centos 7 builds, the hosts register but do not have that repository attached.

I have removed and re-added that repository, cleaned the local data.
I have unregistered and registered again, there is no reference to this.
I have checked the subscription and repository are attached to that activation key.

Is there something I am missing? Do I need to do something when adding a subscription to a activation key?
I am currently running v3.1.3