It's been 2 years since last play. It's seem, while in-game walkthrough done good, it seem not 100% accurate. You still have to finish other character plot first, despite it the hint say you can continue with the character you want to progress.
Ex. To progress A, you need to progress B. After progress B, hint say A progress now available. But try to trigger A progress, nothing happen. So I keep progress B till it's done, then when back to do A, now it's trigger the scene.
So in the end, I have to do everything before certain character progress can continue. Idk it's bug or the game 'delight' feature.
