Failed distortion correction

Hi @mblesac,

Some other users have reported similar issues (see threads linked here).

  1. Have you tried using the most recent LTS version (20.2.7 at this time)?
  2. Have you confirmed that the phase encoding directions are correct for your fieldmap and BOLD files?
  3. Have you confirmed that fMRIPrep is using your fieldmaps and not doing the SYN-based fieldmapless method? You did not share your command, so I don’t know if you enabled it or not.
  4. Does fMRIPrep return any errors?
  5. Is this error consistent across subjects?

Best,
Steven