Hey Paul, on your page settings what do you have selected? I assume you are using dynamic lighting, but only want the players to see the area that they are currently in, and after they explore an area its leaving grayed out parts of the map. Try only having the following boxes selected on your page settings: Dynamic Lighting (Enabled,) (Enforced Line of Sight), and then I prefer (Only Update on Drop) and (Restrict Movement.) Hopefully that helps and gives you the map settings you are look for.