Cognito, Custom Domain and Cloudfront

So I want to have a Cognito App Client configured with my own domain, this I can do and it seems to create an alias target in cloudfront for me to put in my DNS.

My question is where is this cloudfront configuration? I can't see it under my account cloudfront distributions.....? so where is it setup?

The issue really arises when I apply my cloud formation for a second time, after a successful cleanup from the first deployment my second deployment fails as my domain name is already in use by the cloud front distribution. I just can't see where. If I use the console to recreate the domain configuration it works just fine.

Any tips? insights?

Thanks!