Dianne,

I was able to download your dicom and reproduce your error. I get the same error when I simply run dcm2niix on the dicom, then ADIR_nii2dicom on the nii with the original dicom. So, the error isn't in the de-facing at all but just in converting from dicom->nii and nii->dicom with these particular inputs. We'll debug from here and get back to you soon. 

Chris

$ dcm2niix -o dcm2niix ./MRIS/dicom/219/itbs/T1_mprage_1mm_13

Chris Rorden's dcm2niiX version v1.0.20221013  (JP2:OpenJPEG) GCC4.8.5 x86-64 (64-bit Linux)
Found 176 DICOM file(s)
Convert 176 DICOM as dcm2niix/T1_mprage_1mm_13_T1_mprage_1mm_20180706110327_13a (256x256x176x1)
Conversion required 1.046187 seconds (0.340000 for core code).

$ ADIR_nii2dicom dcm2niix/T1_mprage_1mm_13_T1_mprage_1mm_20180706110327_13.nii dcm2niix/nii2dicom ./MRIS/dicom/219/itbs/T1_mprage_1mm_13
Traceback (most recent call last):
  File "/bin/ADIR_nii2dicom", line 72, in <module>
    nii2dicom(args['<nii>'], args['<outDir>'], args['<originalDicomDir>'],verbose=args.get('--verbose',False),sliceDim=int(args.get('--sliceDim')),modality_default=str(args.get('--modality')),manufacturer_default=str(args.get('--manufacturer')),photometric_default=str(args.get('--photometric')),dry_run=args.get('--dry-run',False),uid_root=str(args.get('--UID_ROOT')),seriesNUM_select=args.get('--seriesNUM_select',None),seriesUID_select=args.get('--seriesUID_select',None))
  File "ADIR_nii2dicom.py", line 110, in nii2dicom
    dicom_0 = dicom.dcmread(gzip.open(dcmfiles[0],mode='rb')) if(dcmfiles[0][-3:] == '.gz') else dicom.dcmread(dcmfiles[0])
IndexError: list index out of range