I recently installed Optifine_1.4.6_HD_U_D5 to Tekkit Lite, and this has seemingly broken the minimap that appears in the top right corner of the screen. Instead of the map, I get a error:null. The waypoints still show up, but I can't access the menu for the map and I can't do anything with the map. Is this because optifine is conflicting with Rei's minimap mod, or is it something else?