Can you let us know if it is reproducable? I believe it has something to do with clicking the previous dialogue too quickly.
Viewing post in Fresh Meat For Dead Lucy comments
No, I was recording gameplay. But even when the dialog box appears, the sentences don't advance; only a single letter shows up, and then I have to click to finish the sentence. However, it only freezes during the cleaning part. Let's wait and see if anyone else has this problem, or if I'm doing something wrong.