There is a bug in the twins 4th event in V.0.2.2 that stops the final scene from unlocking. When given a choice in the scene, if you pick the first option, you will be able to repeat the event infinitely but the final scene won't unlock. To fix this, all you need to do is go back to the event and choose the second option. This will close the loop and allow the final scene to unlock. The current version, V.0.2.3 is fixed.