Hi All,
I guess I found the problem with the linux from SPM forum, so it is about the permission rights of the CAT_Surf2Sphere file, which I made the changes in permission and it works at the moment.
Here is the discussion
https://www.jiscmail.ac.uk/cgi-bin/webadmin?A2=ind1811&L=SPM&O=D&P=16430
For the windows, weirdly enough even though I downloaded SPM12 from SPM website (https://www.fil.ion.ucl.ac.uk/spm/download/restricted/eldorado/spm12.zip)
it came without spm_ov_mesh.m file in spm_orthviews folder. So I copied it from Github and now it works.
I guess those solved, for now, haven't finished running the whole segmentation but so far so good!
Bests
Isil