In 0.2, saves are broken, and I don't mean saves from previous versions.
Any save made right after a label partially works, but if you quit and relaunch and load that save, it starts from the label instead of starting at the correct point in the scene. (Roll-forward presumably doesn't work.)
Any save made later in a scene fails outright, saying that it can't find an appropriate spot in the script for rollback. Increasing the rollback and hard rollback limits in options.rpy prevents the crash, but it still rolls back to the start of the nearest scene on every load.
I've experienced this on multiple versions of the RenPy engine all the way up to the current 8.x (after changing "imagebutton auto" to just "iamgebutton" so it will load in later versions), so it's probably not an engine bug.
Compounding this is the fact that there's an almost 3000-line stretch without a single label or statement.