So, bedpostx is trying to read the voxel number 9215 for that slice,

but the slice only contains 9214 voxels (after applying the mask).

Can you check your mask and your data ?

They should have the same resolution.

Also, can you use bedpostx_datacheck to check your data, bvals and bvecs ?

Moises.

On 4 November 2015 at 10:57, Peter Kraemer <[log in to unmask]> wrote:

Hi Moises,

I'm using FSL 5.0.8, brought with the virtual machine the human connectome people offer (http://humanconnectome.org/courses/2015/exploring-the-human-connectome.php).
Yes, it says:
An exception has been thrown
Logic error:- detected by Newmat: index error: requested indices=1, 9215

Matrix Type = Rect # Rows = 432; # Cols = 9214