Hello, Andrew,

Thank you for your Suggestion. It did stop changing after I uncheck the box. But when it come to the FT module, the result is the same. It still read:
Optimizing kurtosis dODF...Error using dke_ft (line 132)
The number of voxels in the FA image and the tensors must match!
Make sure map_interpolation_method.flag = 0 for tensor fitting or reconstruct
the fa image from the DT.mat using the Nifti header from the diffusion weighted
images

It seems that map_interpolation_method.flag = 0 did not work out. Do you have any other Suggestions?

Best,
Xinman