How to convert fMRIprep preproc_bold output to cifti format, without rerunning fMRIprep using the --cifti-output flag

Hi i have previously ran fMRIprep without using the --cifti-output flag and obtained the *space-MNI152NLin6Asym_desc-preproc_bold.nii.gz

So i’m wondering if its possible to convert this to the dtseries.nii cifti format?

I was able to run

wb_command -cifti-convert -from-nifti sub-1003_task-rest_space-MNI152NLin6Asym_desc-preproc_bold.nii.gz sub-1007_task-rest_space-fsLR_den-91k_bold.dtseries.nii sub-1003.dtseries.nii

i’ve obtained sub-1007_task-rest_space-fsLR_den-91k_bold.dtseries.nii from preprocessing another subject with the --cifti-output 91k flag

however the output sub-1003.dtseries.nii doesnt seem quite right, the values in the left hemisphere are mostly 0s