Dear Sir,
First, I use @SUMA_Make_Spec_FS to convert the anatomical data and make the standard-Mesh surfaces. The standard-Mesh surfaces node of the every subject is the same: 198811.

Then I use the @SUMA_AlignToExperiment and 3dVol2Surf to map the functional data to the surface, and then the result data file: DataSurf.1D.dat. But for few subject, there is some node lose in the DataSurf.1D.dat.( for example: There is only 198765 nodes in the DataSurf.1D.dat, but the total number is 198811 for some subject.). So I want to know what is wrong for this situation. If it is due to the wrong mapping from the functioanad data to the surface.

There is the @SUMA_AlignToExperiment and 3dVol2Surf I used for the steps:
@SUMA_AlignToExperiment -exp_anat structure+orig. \
-surf_anat ${subject}_SurfVol+orig. \
-align_centers \
-wd \
-followers_interp NN \
-surf_anat_followers aparc.a2009s+aseg.nii \
aparc.a2009s+aseg_rank.nii \
lh.ribbon.nii \
rh.ribbon.nii \
wm.seg.nii

3dVol2Surf -spec std.141.${subject}_${hem}.spec \
-surf_A std.141.${hem}.smoothwm.gii \
-surf_B std.141.${hem}.pial.gii \
-sv ${subject}_SurfVol_Alnd_Exp+orig \
-grid_parent ${subject}++orig \
-map_func ave \
-f_steps 10 \
-f_index nodes \
-out_1D ${subject}.${hem}.1D.dat \
-out_niml v2s.${fname2}.${hem}.TS.niml.dset