What is happening:
two things. the first is, i already completed the quest where you take something to Professor Flamel but for some reason i was able to do it again. the second thing is, the dialogue glitched up while i was talking to Silicon and Halite.
Steps to reproduce the issue:
honestly not 100% sure. first thing, i just talked to Silicon and Halite to see if there were any quests i missed and i accidentally clicked on this one. as for the dialogue, i delivered the thing to Flamel. when i got back there was a ! above Halite so i tried talking to her. it didn't work. so i talked to Silicon, and then the screenshots below happened. note also that if this happens, Halite's name and face glitch out.