LoadUnityWeb limited to load 2 Scenes?

Hi, i have a project with a lot of scenes, i cant load scenes with LoadUnityWeb but only 2 scenes, third scene cant be loaded.

i use this code when i need to change to other scene.

function carga_Escena (escena)
{
var direc = new WWW (URL_partida + escena + “.unity3d”);
yield direc;
direc.LoadUnityWeb();
}

Thanks

I thought LoadUnityWeb was completely broken.

http://forum.unity3d.com/viewtopic.php?t=10412

Maybe it depends on the scene?