Hi Martin,
I am current working on a project with DTI data. I want to convert my nifti (nii) to nrrd. I also met some problems when I tried to do NifitFSL To Nrrd in 3D Slicer 4.8.1 in Windows 10, 64-bit OS (I've already converted the DICOM data which collected from Philip to NIfTI nii by dcm2nii) . I set the panel as showing in the attachment.

I also checked that the .bval file contains the information as: o 1000 1000.....while the .bvec file contains rows correspond to x/y/z column compnents respectively. These may be the supported FSL-style by DWIConvert.

However, when I clicked the "Apply", the error came out as following: DWIConvert.exe has stopped working.  I tested this for several subjects. There was always the same error.

Diffusion-weighted DICOM Import (DWIConvert) standard error:

Error: ReadVolume: Unsupported source pixel type.
Input volume: float
Output volume: short
The only supported output type is . You may consider using allowLossyConversion option.
However, use this option with caution! Conversion from images of a different type may cause data loss due to rounding or truncation.

Could you help me with this problem?
Thanks in advance!
Xiao