Found an incorrect line during/after one of the sex scenes in whatever public version was before version 1.4.9 (the Itch app only says "magic-academy-windows.zip" as the file name): when Lilian gives an under-the-table blowjob in the tavern after the celebration party, the text talks about "Joyce" and how her loud slurps can be heard throughout "the office".
Joyce isn't even introduced until after the next paint cleaning minigame...