Hi Steve,
No reason to guess now, I found and downloaded a copy of the frf-kmspv5 package and it has a Scenery folder and a Texture folder. That texture folder has a ga hanger SS 3a.bmp texture in it. So, if BBQSteve's enabled frf-kmspv5 folder does not have a texture folder or the texture folder is missing the ga hanger SS 3a.bmp texture, then that, most probably, would be the problem that causes the black texture.
Rod