You have to enable/disables cheats "iroll20s" then "NoFog" works
But that remove achievement from the game
yes that is true it disables achievements. sorry i forgot that... it is "dirty" workaround but it works
if you disable fog of war doors work normally. So line of site problem... looks like
Edit: Doors Can always be closed but if you close it you can't always open it (unless you disable FoW)