Im just wondering , have you loaded the heghtmap successfully yet ? As for the textures , first check the file directory and affirm the path to your images . If things seem correct but arent working correctly then check your .TER file . Its compiled and encrypted but you can open it with notepad then search for your terrain texture file names Youll see a path , check against those paths , they are where your searching for the textures and something could be wrong . You can also edit the paths in the word processor . lastly try putting the textures in the data/terrains and any subfolder you wish or just leave them in the data/terrains folder . go back to the editor and window > texture painter > add/change and go through the folders to where they should be .