Hi,

For some of my subjects I get the following error at the beginning of recon-all: 

 mri_convert /path/to/inputt1.nii  /path/to/mri/orig/001.mgz

mri_convert /path/to/anat_t1.nii /path/to/mri/orig/001.mgz
reading from /path/to/anat_t1.nii...
NaN found at voxel (0, 0, 244, 0)
error: No such file or directory
error: WARNING: 319676 NaNs found in volume /path/to/anat_t1.nii...

However, recon-all will keep running and then later finish without error. What exactly is going on? This is only happens on some subjects.

Thank you,

Carlos