Hello good people!
We are using the default preprocessing pipeline "default preprocessing pipeline for volume-based analyses with indirect normalization to MNI-space when fieldmaps are available" to analyze resting state data. We have phase and magnitude images that we have put in a secondary dataset.
It seems like the vdm files are created, but then there seems to be an issue with CONN identifying/finding the vdm files it creates for the fieldmaps.
This is the error it gives:

Failed 'Realign & Unwarp'

Error using spm_vol>spm_vol_hdr
File "/gpfs/group/HHD/default/Sandlab/AbSANT fMRI R21/Anna's Qualifying/PWA fMRI raw data/preprocessing attempt5/psuma_r21_12/functional/vdm_f202202071130-0004-00001-000001-01.nii" does not exist.

The file name it is looking for has the same name as the functional (resting state) file for each participant with a "vdm_" prefix added. However, the vdm file it created in the previous step has the same name as the raw phase/magnitude fieldmap files.
Any suggestions?
Thanks!