Be warned that save-states currently aren't 100% reliable; in-game saving is recommended for saving long-term progress, while save-states are better suited for other things (boss-battles, tricky time consuming puzzles or challenges, etc). But that's not related to your issue...
You can try redownloading, you also might want to try the official 3.0 build, the last stable release as opposed to the latest GIT releases (3.0-XXX builds).
You can try redownloading, you also might want to try the official 3.0 build, the last stable release as opposed to the latest GIT releases (3.0-XXX builds).