Then something went wrong, should have triggered.
If you think it is worth it, the bug is fixed in the latest version but requires a new save. We understand that might be a bit of a hassle so maybe you can save that for a second playthrough using Easy Mode and use the opportunity to check the other Twig and Zenelith routes and maybe spend your stats so that you can see any alternative scenes that you might've missed on a first playthrough :)