Hello! I have a question regarding a preprocessing step:

When I try to remove the first 4 scans of my functional images with the preprocessing step of 'Functional Removal of Initial Scans', functional Segmentation and Normalization would fail. I tried removing the initials scans by using the SPM gui to select individuals scans as well, and I received the same error. 

Below is the error message from MATLAB:

Running 'Segment'

SPM12: spm_preproc_run (v6365) 13:29:56 - 08/05/2017
========================================================================
Segment /gablab/p/shinn/BPAH/091110_XA87UB/art_mean_au091110_XA87UB_eor1_rest_reorient.nii
Failed 'Segment'
Index exceeds matrix dimensions.
In file "/software/gablab/spm12/spm_maff8.m" (v6421), function "loadbuf" at line 94.
In file "/software/gablab/spm12/spm_maff8.m" (v6421), function "spm_maff8" at line 25.
In file "/software/gablab/spm12/spm_preproc_run.m" (v6365), function "run_job" at line 107.
In file "/software/gablab/spm12/spm_preproc_run.m" (v6365), function "spm_preproc_run" at line 41.
In file "/software/gablab/spm12/config/spm_cfg_preproc8.m" (v6798), function "spm_local_preproc_run" at line 418.

Running 'Normalise: Write'
Failed 'Normalise: Write'
Error using read_hdr (line 32)
Error reading header file "/gablab/p/shinn/BPAH/091110_XA87UB/y_art_mean_au091110_XA87UB_eor1_rest_reorient.nii".
In file "/software/gablab/spm12/@nifti/private/read_hdr.m" (v4967), function "read_hdr" at line 32.
In file "/software/gablab/spm12/@nifti/nifti.m" (v4986), function "nifti" at line 26.
In file "/software/gablab/spm12/@nifti/nifti.m" (v4986), function "nifti" at line 81.
In file "/software/gablab/spm12/config/spm_run_norm.m" (v6578), function "write_norm" at line 98.
In file "/software/gablab/spm12/config/spm_run_norm.m" (v6578), function "spm_run_norm" at line 29.
The following modules did not run:
Failed: Segment
Failed: Normalise: Write


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Please let me know how I can resolve this issue.

Thank you!!