to handle issues like this, which results from reading the wrong number of scalars in the first place.
Executing node Sulci.a1 in dir: /home/jovyan/work/data/scratch/arno/Mindboggle/Surface_features/_hemi_rh/Sulci
ERROR: In ../IO/Legacy/vtkPolyDataReader.cxx, line 293
vtkPolyDataReader (0x2480ec0): Number of points don't match number data values!
to handle issues like this, which results from reading the wrong number of scalars in the first place.