Are you talking specifically about using the Rapid position corner buttons? We changed how the max distance was calculated from 95% of max travel to max travel - 5mm between 1.2.2 and 1.4.X to be more consistent across all corners, which would probably explain why a max travel of 574 in the previous version didn’t hit the corner (because it actually only travelled 95% of that, which is 552mm).
In general rapid position is only as accurate as your EEPROM max travel settings. If your machine has a physical limit of ~553mm, that should be reflected properly in your EEPROM settings if you expect features to work as expected.