Download of a zoomed image downloads wrong part of the image

I zoomed in on a region on https://dlg-staging.galib.uga.edu/record/dlg_sanb_thomasville-1920

I expected that the resulting clip would match what I see in the viewer. Instead I got this: https://meta-staging.galib.uga.edu/images/iiif/2/dlg%2Fdlg%2Fsanb%2Fdlg_sanb_thomasville-1920%2Fdlg_sanb_thomasville-1920-00004.jp2/128,403,238,106/full/0/default.jpg?download=true