Dear freesurfer experts,

I have a subject ending up with this error after recon-all.

I tried to edit the aseg and run it, but it stuck at topological step.

CORRECTING DEFECT 79 (vertices=54196, convex hull=8490)
error in the retessellation
normal vector of length zero at vertex 97187 with 0 faces
vertex 97187 has 0 face
No such file or directory
Linux cs-cbl-03 2.6.32-573.22.1.el6.x86_64 #1 SMP Wed Mar 23 03:35:39 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux

recon-all -s test_emc_039 exited with ERRORS .....

Could you guide me how I can correct it.

Thank you,

Maryam

Regards,

Maryam Kouchakidivkolaei