Our game is internally unlike other games, we rather use pure python, in a rough explanation. That's why the save system is what it is. Use the nearest checkpoint and use the force skip function.Yes, the scene tree. The way it is in the game is frankly utterly ridiculous. It goes WAYYY off the screen and you have to keep dragging and dragging and dragging to move to get to see what you need for a new scene. It's a huge hassle and very annoying. Maybe have it so you scroll down instead of dragging your screen over and over again.
I've been playing renpy games for years and never been told to clear the game cache for a new update, ever. Does this mean you have to start ALL the way over from scratch again?