Hey! Please make sure you've replayed Episode 3 with the 3.1 patch to avoid this error. If you have played through 3.1 and are still getting this error, you can delete your old files and simply use the files you get when you download Episode 4. This won’t delete any of your save files.
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 ^^;