Hi, Beatriz

Thank you so much for your reply! Sorry that I didn't see your reply earlier and I nearly gave up on using SPHARM. Seeing your reply has given me new hope :D.
The Mesh/PostProcess folder is empty, and there's incomplete (I believe) outputs in the Mesh/SPHARM folder:
groupA_01_hippo_pp_surfMedialAxisScalars.csv
groupA_01_hippo_pp_surf_medialMeshArea.txt
groupA_01_hippo_pp_surf_medialMeshPartialArea.txt
groupA_01_hippo_pp_surf_medialMeshPartialRadius.txt
groupA_01_hippo_pp_surf_medialMeshRadius.txt
groupA_01_hippo_pp_surf_paraPhi.txt
groupA_01_hippo_pp_surf_paraTheta.txt
groupA_01_hippo_pp_surf_para.vtk
groupA_01_hippo_pp_surfSPHARM.coef
groupA_01_hippo_pp_surfSPHARM_ellalign.coef
groupA_01_hippo_pp_surfSPHARM_ellalign.vtk
groupA_01_hippo_pp_surfSPHARMMedialAxis.vtk
groupA_01_hippo_pp_surfSPHARMMedialMesh.vtk
groupA_01_hippo_pp_surfSPHARM_procalign.vtk
groupA_01_hippo_pp_surfSPHARM.vtk
groupA_02_hippo_pp_surfMedialAxisScalars.csv
groupA_02_hippo_pp_surf_medialMeshArea.txt
groupA_02_hippo_pp_surf_medialMeshPartialArea.txt
groupA_02_hippo_pp_surf_medialMeshPartialRadius.txt
groupA_02_hippo_pp_surf_medialMeshRadius.txt
groupA_02_hippo_pp_surf_paraPhi.txt
groupA_02_hippo_pp_surf_paraTheta.txt
groupA_02_hippo_pp_surf_para.vtk
groupA_02_hippo_pp_surfSPHARM.coef
groupA_02_hippo_pp_surfSPHARM_ellalign.coef
groupA_02_hippo_pp_surfSPHARM_ellalign.vtk
groupA_02_hippo_pp_surfSPHARMMedialAxis.vtk
groupA_02_hippo_pp_surfSPHARMMedialMesh.vtk
groupA_02_hippo_pp_surfSPHARM_procalign.vtk
groupA_02_hippo_pp_surfSPHARM.vtk
groupB_01_hippo_pp_surfMedialAxisScalars.csv
groupB_01_hippo_pp_surf_medialMeshArea.txt
groupB_01_hippo_pp_surf_medialMeshPartialArea.txt
groupB_01_hippo_pp_surf_medialMeshPartialRadius.txt
groupB_01_hippo_pp_surf_medialMeshRadius.txt
groupB_01_hippo_pp_surf_paraPhi.txt
groupB_01_hippo_pp_surf_paraTheta.txt
groupB_01_hippo_pp_surf_para.vtk
groupB_01_hippo_pp_surfSPHARM.coef
groupB_01_hippo_pp_surfSPHARM_ellalign.coef
groupB_01_hippo_pp_surfSPHARM_ellalign.vtk
groupB_01_hippo_pp_surfSPHARMMedialAxis.vtk
groupB_01_hippo_pp_surfSPHARMMedialMesh.vtk
groupB_01_hippo_pp_surfSPHARM_procalign.vtk
groupB_01_hippo_pp_surfSPHARM.vtk
groupB_02_hippo_pp_surfMedialAxisScalars.csv
groupB_02_hippo_pp_surf_medialMeshArea.txt
groupB_02_hippo_pp_surf_medialMeshPartialArea.txt
groupB_02_hippo_pp_surf_medialMeshPartialRadius.txt
groupB_02_hippo_pp_surf_medialMeshRadius.txt
groupB_02_hippo_pp_surf_paraPhi.txt
groupB_02_hippo_pp_surf_paraTheta.txt
groupB_02_hippo_pp_surf_para.vtk
groupB_02_hippo_pp_surfSPHARM.coef
groupB_02_hippo_pp_surfSPHARM_ellalign.coef
groupB_02_hippo_pp_surfSPHARM_ellalign.vtk
groupB_02_hippo_pp_surfSPHARMMedialAxis.vtk
groupB_02_hippo_pp_surfSPHARMMedialMesh.vtk
groupB_02_hippo_pp_surfSPHARM_procalign.vtk
groupB_02_hippo_pp_surfSPHARM.vtk

I only had 2 subjects in this analysis. Thanks in advance for your help!

Best,
Yifan