keithcurtis said: (Regular) Fog of War is enabled. It looks like you have revealed an area that is blocked by dynamic lighting. Have you revealed the areas you want the players to see (i.e. the corridor that the token is currently in) using the reveal tool? The default is that the entire map is obscured. So when do I start paying you for Roll20 support? ;) Thanks a ton again for your answers, however I'm not sure I understand you: 1. "(Regular) Fog of War is enabled" yep exactly - like I said Advanced causes slowdowns. However FoW is disabled by default on Hidden Shrine (it uses Dynamic Lighting and nothing else). Do I need advanced to get the effect I'm talking about? I thought Advanced just meant that instead of "light auras" token's instead revealed anything they had line of sight to. I can live without that, but would like all areas players reveal with their light/sight to stay revealed for them behind the greyed out fog of war. All my ToA maps with regular FoW do this. Using only Dynamic Lighting, areas go pitch black for my players as soon as their "light aura" moves. 2. "The default is that the entire map is obscured" - sure, but shouldn't Token Sight/Light reveal this? In my screenshot I have provided an example of three things: 1. an area revealed with the tool, 2. a token with sight and light radius in the "walls" of the map, 3. a token with sight and light standing in a room (not blocked by dynamic lighting walls). 2a. If I disable fog of war and only have dynamic lighting enabled, token sight works perfectly fine - that goes for both tokes in the above example. This is also the case for the token next to the compass, which with DL but not FoW enabled also reveals compass, despite being behind dynamic lighting walls. 3. I suspected dynamic lighting "walls" might have been the problem, that's why I included a token just standing in a normal room as well - same effect. The reveal tool DOES work when used on normal rooms, however (just tested it), but tokens reveal nothing with the settings I have.