SU2 DEF

[clacon20]

Hello SU2 developers,

I've got a question regarding the usage of SU2_DEF when a prescribed displacement of the surface mesh is assigned.
I saw people using it for 3D cases, where a .dat file containing the new boundary coordinates is parsed to the solver through the configuration file. I tried exactly the same approach for a 2D cases (just an aerofoil being morphed my my own code), with same syntax for the boundary file but weirdly something is not working with all of the coordinates being brought to zero expect for two points (which should be leading and trailing edge) which are moved outside the farfield region.
Is there any difference way in using SU2_DEF between 2D and 3D cases?

Many thanks