Was speaking to the NIA officer-in-charge yesterday because the machine continues to hate my passport. According to him, those with older passports have issues not because of the size but because of the ICAO lines at the bottom of the picture page. Versions that are older (mine is 2014) create issues with the reading of the passport, hence the "chip cannot be read" screen (there's no cannot read page in the software). NIA went to engage AIT and DHS to figure out what was going on.