I don't know if that would help you.
but are you playing with your old backup or have you started a new game again. I had a similar bug with a scene with melody's aunt (after the birthday at her hotel and go eat later with her in the restaurant), which was done when I had chosen a "only melody route". it was a bug that was fixed later. I started a new game with the latest version of the game and the story went the way I chose it. it may be that your old backup causes a bug (because they are keeping this scene/bug in memory) while you play with the new version of the game.
Okay, playing again from the beginning is annoying, but I did it by accelerating it by passing the text with "skip the text" and helping me with the walk. there was also another bug that unlocked your relationship with some girl of the game. before starting the scene that bothers you, check in the other girls relationships if it is not on unlocked.