I imported the eduroam config from another CPPM version and noticed that one of the Aruba VSA in one of the services had changed in 6.7.3.
I can't remember which service it was as but the attribute that was in the imported eduroam config was, I believe, RADIUS:Aruba - User-name. This wasn't recognised on 6.7.3.
I used your guide and configured it without the wizard in the end. Much prefer to do it that way anyway.