LOS in AD&D second Ed. ruleset

[Gerald F]

Hi there,
trying to start the LOS on a map. I have build all the walls, terrain and doors - but my players only see a black screen (see att. pictures). I´m - as GM - can see the Los. The players are able to move the tokens - but only in a black rectangle.
What I´m doing wrong?
Is it disabled in AD&D second Ed.?

[Sulimo]

Did you add the PC tokens to the Combat Tracker, then drag them from the CT to the Map?

[LordEntrails]

You need to go to play mode as the GM. d20 icon in the top left of the image edit window.

[Griogre]

FYI, usually you want to run just one theme, not both the Wood theme and Simple Brown one.

PS welcome to the boards.