Videos that contain interactive elements—such as buttons or branching logic—cannot be downloaded. These features are designed specifically for interactive playback within the Synthesia platform and aren't supported in downloadable formats.
This is due to a hard technical limitation. Interactive functionality relies on real-time logic and user input, which simply isn’t supported by standard video file formats. This limitation ensures that interactive functionality, like clickable choices or navigation buttons, works as intended within the Synthesia player.