I loaded up the new FTB Revelation modpack, however in every world I've created, my Journeymap mini-map (the small circular map at the upper right of the screen) does not work. It shows my own icon, it shows mob icons, but it only shows black squares instead of the actual terrain. I've looked at all the Journeymap options for the mini-map, and I've experimented for quite a bit of time with it, but cannot get it to work. Anybody else experiencing this issue? Any solutions for it? If I press the J key, I get the full world map with the terrain exposed where I've travelled... so I know the mod itself is working fine, it's just the mini-map that has a problem.