I have seen this error mentioned several times on the list but I have never seen a solution posted. It is claimed that there is a patch and a README that explains the patch at:

In this folder there are a bunch of files but there is no README so I am not sure what exactly I need to do. I tried replacing the files in my /usr/local/freesurfer/bin with those in this patch folder but the error remains. This error appears with all my data sets that I have tried. So it doesnt seem to be something specific to my data. 

Loading aseg from /media/fMRI_21/studyname/freesurfer/avgsub3/mri/aseg.presurf.hypos.mgz
ASeg Vox2RAS: -----------
-1.00000   0.00000   0.00000   128.00000;
 0.00000   0.00000   1.00000  -128.00000;
 0.00000  -1.00000   0.00000   128.00000;
 0.00000   0.00000   0.00000   1.00000;
mghRead(mri/norm.mgz, -1): could not open file
-------------------------

Labeling Slice
relabeling unlikely voxels in interior of white matter
Segmentation fault (core dumped)
Linux nielsj-XXXYYY 4.18.0-25-generic #26~18.04.1-Ubuntu SMP Thu Jun 27 07:28:31 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux

recon-all -s avgsub3 exited with ERRORS at mié jul 31 12:05:20 WEST 2019

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