Hi, 

I was running longitudinal trac-all. After the 3rd step -path was finished, I found that multiple pathways were missing (e.g. fminor). I traced back, realizing outputs from its first step trac-prep were missing corresponding pathways in SUBJ_base/dlabel/mni/fminor. However, the scripts of SUBJ_base_long_ses-1 and ses-2 both claimed "trac-preproc finished without error". I double checked the bval, bvec and DTI and increased the memory limit, the same problem still exists. So I was wondering how to fix it. Attached the log file of SUBJ_base of trac -prep. 

Best, 

Qi