Hi-

I think this could happen if your EPI is veery far away (spatially) from the final template dataset. In short, the warp program creates a grid that encompasses both, at the spatial resolution of the template (so, reasonably high res), and if they are far apart, that can be gigantic. But, this is only a postulate.

What is the output image of each of these look like:

@djunct_overlap_check    \
     -ulay ${top_dir}/nlWarp/MNI152_2009_template_SSW.nii.gz \
     -olay ${epi_dir}/MJ022+orig'[0]' \
     -prefix IMAGE1

@djunct_overlap_check    \
     -ulay ${top_dir}/nlWarp/MNI152_2009_template_SSW.nii.gz \
     -olay ${top_dir}/nlWarp/022_10012020_anatWarped/anatSS.022_10012020.nii \
     -prefix IMAGE2

?

(Also, it would probably be a bit easier to read the full afni_proc.py command if you copy+pasted it into the text here-- that image is a bit grainy and oddly spaced; there is even a "code" block icon just above the Message Board text fields that you can wrap code in, so it is offset in bright yellow-- the icon looks like a tiny white rectangle, kind of like a small postal letter but I guess it is supposed to look like code.)

--pt