Hello, I recently started the Lost Mine of Phandelver and my players can't see Cragmaw Hideout. All the other maps are visible, but when I move the players ribbon to Cragmaw Hideout, all they can see is a white box where I have tried to reveal portions of the map. It looks like an empty grid with player tokens, without any of the map's detail. At one point, I copy/pasted their character icons from the starter page onto the Cragmaw Hideout map. Could I have broken it somehow? Sorry if this question has appeared somewhere else.