I just had something go wrong with the translation. I was playing and the game froze up for a second. When it started working again, the translation stopped, it went full Japanese with real time machine translation as if the Part and After Party translations were never added. Even the menus and buttons with words were in Japanese. I exited the game after finishing the day and got it working again, but it seems several lines of text are still being translated by machine as if there was no Party or After Party translation. This happened on only two characters so far, both from DLC content that was translated by the After Party DLC translations, and only a few of their lines do it.
EDIT: This did seem to fix itself so far, but it could still happen again. I don't know what knocked out the translation in the first place, so that problem is still at large and it would result in the exact symptoms as above.
I can't load the game, but I can drag the loading bar, but it's always like I can't get in
Does the loading bar move at all, even just little bits at a time? If so, it is working properly.