I have generated properly the LODs for my worldspace but when I open the map I see this: http://s1295.beta.photobucket.com/user/PelinalWhitestrake/media/2013-02-10_00001_zpsad8e5a46.jpg.html#/user/PelinalWhitestrake/media/2013-02-10_00001_zpsad8e5a46.jpg.html?&_suid=136076192959308786509218456533 it is the border (terrain ecc are visualized correctly), how you can see clouds are underwater, why?? in some points clouds emerge from water http://s1295.beta.photobucket.com/user/PelinalWhitestrake/media/2013-02-13_00001_zps54a0baef.jpg.html#/user/PelinalWhitestrake/media/2013-02-13_00001_zps54a0baef.jpg.html?&_suid=136076233765407144847188788458.
Only thing that comes to my mind is that having imported it with tesannwyn it has land height=-2048 and water height=22000