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It also happened to me, precisely in going through the mission with Aya and Bash, and June's confession about his past, too.More likely because I forgot to get the 3.1 patch and simply deleted the old game and went with the 4 version. 

Sure selecting the "ignore" button helps to continue thorough the chapter (although missing a line of the narrative because of the error, we still can piece together the dialogue by imagination), but another error happens when I tried to take screenshot. Twice, while reading the chapter 4 which can still use "ignore"; but in the Gallery, it led you into new game or even exit the game. The weird thing is the screenshot still produced in the folder despite the error ^^;