I had an odd moment where my only player could see things that were hidden by fog of war. The tokens were technically on the token layer, but they were within fog of war "hidden." I fixed the token visibility problem by just switching the tokens over to GM layer, but the map is still revealed to the player. I've rejoined as a player to see if I had the same problem, but the fog of war is working perfectly when I rejoin as a player.
I'll have the player rejoin to see if that fixes the problem, but I thought I may as well post this bug.