Hi Leila

The surface provided in BNV is in standard MNI space. BrainNet_GenCoord.m extracts node coordinates as the native space of the nifti file. So, I'm not sure if "aparc+aseg.nii" is in the MNI space. Please try overlap this file onto MNI template like ch2 using MRICroN to have a check. If not, please transfer it to MNI space.

Best,
Mingrui