Using angle zero for blindness does not work

Hi, I had a session yesterday and there was a moment when we had to simulate blindness somehow. Since we are using Dynamic Lighting and Advanced Fog of War, I took the advice from the Wiki and set the angle for the SC Token to 0. When I looked at the preview (Ctrl-L), everything looked perfect. But the player saw everything. Unfortunately we couldn´t figure it out so I am asking the experts now. J Has sight is checked, 60ft light. All players see is unchecked, Global illumination is checked. Is this is a bug? Is there a workaround?

Advance Fog of War would show to the player everything on map layer that player token had seen before you made the angle change.

best way to blind a pc is using the DL layer and draw a box around there token for ones that dont move. for moving ones with a proper DL layer setup all you need do is take has site away or emiot light. 

Why not just turning off the token's sight? :)

If there is no illumination, yes, then it would work to just take his sight away. But since global illumination is turned on, just turning of the sight option does not work. And with Advanced Fog of War, this is exactly what I want. I want the blind player to see everything on the map layer, but no token layer. And when I used the Ctrl-L to see the player/token perspective, it looked exactly that way. But the actual player saw both layers, no matter what angle. In the end, it turned out to be my fault. There was one player token that was controlled by all players. So the blind player saw everything because of the other token.  :) No bug, just a feature.