I found some bugs.
—After defeating the wererat, her picture remains. Player can walk around and all. I was able to go get some wine even:
—After handing <Signet Ring>, if the player talks to its owner again, the dialogue repeats, but without any ring.
—Error when selecting <Are you an adventurer, too?> in the conversation with the adventurer at the western side of ToB's sewers:
—If you enter the mines through the exit, this happens:
—After clearing the mines, the guards talk in the old terms of "floors" and "bosses".
—And the dialog box bug in Sangsue's chest scene still happens. Only if lockpicks are used, though.