Hi! I tried to DM my first game using Roll20 earlier. We booted up the game and my maps showed up for me, but my players could only see a black square where the map was supposed to be. I then checked all lighting effects and none were turned on. I then re-joined the game as a player and now I couldn´t see my maps either. I am very new to this Roll20 thing, is there something I did wrong? Is there a checkbox I should have clicked on or is it just a bug or server trouble?