having the same issue, when the scene 5 starts, It only shows kyne scene despite talking with the others, the others scene will get unlocked in the gallery but everytime you go to the bar it will play the sex scene with kyne, tried to reset chapter 5, it resets all the dialogue in the devilbook and you get invited again by them, going to the place it plays kyne scene and then the sex scene with him over and over again if you keep going to the bar. reseting is not working and I can't seem to find a way to proceed with the story.

edit: I reset it again and did the scene again, I reopen the game and now there's a place I can go in the map. playing that part now.

edit 2: after playing the scene 6 kyne 2 and saying that its unlocked, the game gets stuck on that message, had to alt + f4. tried to reset to do the others route but again, it seems only kyne route is playing.