
I am newish to roll20 and brand new to running a game on the platform. When I try and set up dynamic lighting one of two things has happened for the players, either there are visible triangles on the map that if they scroll basically reveals the entire map or there is a line in the middle of the map giving full visibility beyond it. I don't think I am doing anything overly complex just using the polygon tool to outline some trees, any help would be appreciated, using chrome on a fairly new macbook