OS: iPhone 5, fully updated
Seoni, Kyra, Merisiel
After completing adventure 3 (with the Hag henchman and the first stone giant boss) and collecting the item rewards
After selecting the role for one character, the game will not respond to any other interaction. Tapping menu icon and any character does nothing.
I had never reached this point before so I don't know if it is some quirk with the party I have or just a general bug.