The content was suposed to start after the end of 1.3.3 yes? It still just plays that little teaser thing and then boots me to the menu after that. I've tried almost every combination of choices i could think of and keep ending up at the same point where 1.3.3 ended.
Probably an issue with renpy itself. Check if it is 1.3.4 you are having in the main menu. Then reload an older save and skip to the end of futa on futa path.
this used to be happening to me, pay attention to what path is getting updated, and when you load a save at the end of a previous update, click the back button a few times before continuing