The Java code that gets generated is using the wrong class, in Forge 1.13 ShapeUtils is now called VoxelShapes.
Also, the actual VoxelShape values are incorrect, since Block.makeCuboidShape divides all values by 16, so the values generated should actually be multiplied by 16
The Java code that gets generated is using the wrong class, in Forge 1.13 ShapeUtils is now called VoxelShapes. Also, the actual VoxelShape values are incorrect, since Block.makeCuboidShape divides all values by 16, so the values generated should actually be multiplied by 16