How does saves works & how they break?

[mold.FF]

Hello everyone,

I'm working on episodic game, and every time our team make a new release, saves from previous episodes stops working. Occuring error was

Code: Select all

Exception: Couldn't find a place to stop rolling back. Perhaps the script changed in an incompatible way?

At first I thought thats because we also made a huge changes in the previous episodes. Later, when I stopped making changes in previous episodes, I thought I just missed something.
But now we just made a small changes in the lines and added a support of new language, and still one the players already reports the same error.
So I now understand that I don't know how does saves work and how to update game code without affecting them.

Can someone point me to what I need to pay extra attention?

[Ocelot]

I suggest to read tis article: https://patreon.renpy.org/dev-2021-02.h ... d-releases

Telling what exactly was broken is hard without knowing what exactly was changed.

[mold.FF]

I suggest to read tis article: https://patreon.renpy.org/dev-2021-02.h ... d-releases

Telling what exactly was broken is hard without knowing what exactly was changed.

Thanks, that helped.
I've found what I did wrong.
I didn't keep the rpyc-files, I didn't know they that important here.