Twitch export function seems to be working again so I managed to save the whole stream on youtube.
https://www.youtube.com/watch?v=R8SENVeluq8&list=PLMGe-3yQy-VE7Q_Yl4ETqZOwvU9esPLxn&index=1
We can easily use that video to help us building the Mogeko Castle, komogege-ko-moge-ko~