ehm... i know its a silly answer but did you saved your map? Because when you dont save and let WE open and call Frozen Throne to start test only the saved version appears...
Or are you using a wrong path perhaps to an old version?
Or your WE dont work correctly and doesnt save correct? Perhaps try reinstall.
or u might send me the map and i try have a look...
Anyway... good luck - i feel with you - I lost my last already done map at error messages
Didnt see that this was answered yet... Are you using WEU? If so... are you using special cliffs other than the normal tileset's? If so, then you gotta get a WEU patch to actually see the cliffs. Which is bad. Not many people on Bnet are gunna be using the WEU patch...