For whatever reason the world generator loves gravel.
I have tried to change it in the Resource Queue , with no luck.
I have deleted the reference from the Resource Queue, with no luck.
Here is what it looks like now ( and yes it still spawns gravel on new maps )

UnderGroundLake(25,60,2,5,0,50)
Dungeon(8,100,0,128)
Ore(DIRT,32,20,100,0,128,STONE)
Ore(CLAY,32,1,100,0,128,STONE)
Ore(COAL_ORE,16,20,100,0,128,STONE)
Ore(IRON_ORE,8,20,100,0,64,STONE)
Ore(GOLD_ORE,8,2,100,0,32,STONE)
Ore(REDSTONE_ORE,7,8,100,0,16,STONE)
Ore(DIAMOND_ORE,7,40,100,0,128,STONE)
Ore(LAPIS_ORE,7,1,100,0,16,STONE)
UnderWaterOre(SAND,7,4,100,DIRT,GRASS)
UnderWaterOre(CLAY,4,1,100,DIRT,CLAY)
CustomObject()
Tree(4,Tree,1)
Plant(RED_ROSE,2,100,0,128,GRASS,DIRT,SOIL)
Plant(YELLOW_FLOWER,2,100,0,128,GRASS,DIRT,SOIL)
Grass(LONG_GRASS,1,10,100,GRASS,DIRT)
Plant(PUMPKIN,1,3,0,128,GRASS)
Liquid(WATER,20,100,8,128,STONE)
Liquid(LAVA,10,100,8,128,STONE)

@RLS0812 Could you please answer? Otherwise this issue will be closed.

• Have you tested that TerrainControl is actually used as the World Generator? (e.g. does any of the features of TC reflect on the created map at all?)
• Do you have
  ModeTerrain:Normal
  in your WorldConfig.ini?
• Did you change the ressource queue in all biomes?

If everything seems to work except for the gravel generation, you could maybe do a workaround with the replaceblocks feature.