[Neuroimaging] nibabel.trackvis.read error

[C.D. Langen]

Greetings,

When I try to run the following line of code:

streams, hdr = nib.trackvis.read(os.path.join(subjDir, 'dti.trk'), 
points_space='voxel')

I get the following error, but only for a small subset of subjects:

   File 
"/cm/shared/apps/python/2.7.6/lib/python2.7/site-packages/nibabel/trackvis.py", 
line 223, in read
     streamlines = list(streamlines)
   File 
"/cm/shared/apps/python/2.7.6/lib/python2.7/site-packages/nibabel/trackvis.py", 
line 202, in track_gen
     buffer = pts_str)
TypeError: buffer is too small for requested array


Someone else had a similar error 
(http://mail.scipy.org/pipermail/nipy-devel/2012-March/007272.html) 
which they resolved by using nibabel from github. I tried this, but got 
the same error.

All subjects' trackvis files were produced in exactly the same way using 
Trackvis, so I am not sure why only a few subjects fail while others 
succeed. Any ideas?

Thank you in advance for your help in resolving this issue.

Regards,
Carolyn Langen