Someone told me that maybe deleting the game and putting it back on would solve it. Of course, you have to manually move your saves, otherwise you have to restart it. Maybe there's some kind of instability issue.
i did think doing that too but i didn't test it, maybe it's something with the dialogue going to fast if the player spam the key for dialogue, but the first time it did that to me i wasn't very fast, not slow either. But with what i did it was working for me even if I did go quiclky with the dialogue. But like i said maybe i was just a coincidence.