These are the technote URLs for BE 2012 service pack 1. To best of my knowledge, you will need to use the new 2012 SP1 full product installation media in order to experience the resolution to this particular issue. In other words, installing the service pack alone on top of a BE 2012 installation will not resolve the issue. I expect that the new media will be available on FileConnect within approximately one week.
URL for BE 2012 Service Pack 1 is here: http://www.symantec.com/business/support/index?page=content&id=TECH186717
Release notes for the service pack are here: http://www.symantec.com/business/support/index?page=content&id=TECH186717
(This is the text within the release notes which I relate to this thread: "When adding new feature/agent licensing after product was already licensed, prior licensed items become deselected and possibly put into trial mode if not corrected by the user.")