Do you play on any emulator, or just on PC? The event itself doesn't really have option for it to break that way, so either I messed up something more serious, in which case I would really appreciate you sending me your savefile so I can check it out, or you are playing through some kind of emulator and these things do cause issues like that. In any case, there is a skill in menu added which should fade in your screen, so unless it crashes the game completely, this should fix it.