Imported swf comes in as graphic insetad of movieclip


When I import a few swf files into the library 1 comes in as a movieclip while the others come in as graphics, and lose quite a bit of content. They should all be movieclips. When I use loadMovie to externally load these swfs they are fine, but things start to break down when I try to import them into the library and use attachMovie.

Is there a publishing setting I am missing?