I am having the same issue with the profile. Jun's doesn't change at all the only info on it is his age 19 and under likes it only has: Piano(?). it is definitely buggy since i got to know him quite a bit, same with Keisuke.
Viewing post in Bug in character profile
It probably has to do with the dev team being so small that they can't go back into the beginning of the story and update each profile. It would take around a day or two to just re-read to the part where they need to update at minimum, and extra time taken away from writing one of the 4 stories they're making. I wish the team was bigger and more people knew about it since they could fix some issues with the lore and code.