The Preferred Address should appear on the transcript even if it is listed as Home 2. Especially important for International students. Currently the work around seems to be to remove the international address (entered during the application process) and then add the host family address as "Home" and then add the international address back as "Home 2". Otherwise only the international address will publish to the transcript.
This has been implemented with the 7/24/19 release for Student Information System in the new Transcript Builder.