Hello FreeSurfer Developers,

I'm attempting to recon-all subjects but for some of my subjects I get the following error when I run recon-all command:
 
 *************************WATERSHED**************************
Sorting...
mri_watershed Error: 
Problem in the COG calculation:
T1.mgz may not contain properly normalized white-matter.
Confirm that T1.mgz has enough white-matter voxels of value 110.
If white-matter contains few if any voxels of value 110,
try adding wm control-points to nu.mgz, and re-run recon-all.

Linux abby-virtual-machine 4.15.0-43-generic #46-Ubuntu SMP Thu Dec 6 14:45:28 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

recon-all -s 0078 exited with ERRORS at Sun Jan 20 20:16:12 CST 2019

I've searched the list and no similar errors have been reported. Does anyone have any thoughts on how to trouble-shoot this one? Also, Ive attached the recon-all.log in case it's of any use. 

Thank you!