Double check to ensure you weren't using a walkthrough mod of some kind. Those have a tendency to break saves. And also make sure that you're loading from a "save your game" screen. The update itself should have 0 effect on saves, so it's likely to be the former (you were using an unofficial walkthrough mod, and will need to wait for the mod author to update it).
All of that being said if you've already played v0.7.1, aka Chapter 7, there's no need to play v0.7.2. This is just a very minor update to "fix" certain things.