Have never reflected much over this, have just assumed that "damn, should have built a hawk", and when I finally have a hawk or whatever "damn, they escaped". But now when I did some testing, wow, this is a serious bug, nothing in the entire game can see a shadow (besided the Empyrean thing). Okey I now that my shadows usually aren't attacked (I don't play on such a high difficulty level) so I cant say anything about that, but lets hope that the AI cant see them either (because that would be a such a large bug that the game more or less would be un...)