WARNING: If you are performing spatial transformations on an oblique dset

Hi all,
Found following warning in fmriprep output.
Any recommendations?
Thanks!

WARNING:e[0m If you are performing spatial transformations on an oblique dset,
interface INFO: such as /root/src/fmriprep/work/fmriprep_wf/single_subject_p001_wf/func_preproc_task_batns_run_1_wf/bold_reference_wf/gen_ref/slice.nii.gz,
or viewing/combining it with volumes of differing obliquity, you should consider running: 3dWarp -deoblique

This warning can be safely ignored.