Migrating the AD Certificate Authority Service server role from 2012 R2 to 2019 — ‘template information could not be loaded’ error

I recently had a 2012R2 server with AD Certificate Services installed, the server was to be discontinued, so we needed to rebuild on a 2019 server.

It didn’t go quite to plan — so I thought I would share my experience!

The 2019 server was spun up in Azure, and I followed this guidance: