[Freesurfer] TRACULA group stats visualization

Dear Anastasia,

I am running into an issue with the trac-all -stat option on our longitudinal TRACULA data.

Everything runs smoothly through all earlier stages, and I checked individual subjects' merged outputs in freeview with -tv mode. Everything looks fine.

Also, then when I run trac-all -c dmric_config -stat, everything finishes without error.

But then when I open the results with the command: freeview -v $FSLDIR/data/standard/MNI152_T1_1mm_brain.nii.gz -w /data/blt/TRACULA/tractography_output/stats.long/*.path.mean.txt

I get the image seen in the attached .png file. Any idea what might be causing this?

Many thanks in advance for you help.

Best, Derek