I'm trying to use overscan for the first time and I notice it doesn't seem to properly crop the calibrated image. As seen in the attachment, I have the image region set to (22, 12, 1684, 1263). I would expect the calibrated image to have dimensions 1663x1252, but the actual dimensions are 1684x1263. It seems to have ignored the values 22 and 12. This is on version 01.08.06.1448 Ripley (x64).
Attached is a capture of the calibration window.