Saved game not loading

yeah, you can't load a saved game of an old version of the game after the game has been updated. If you play the Test Edition version, it's going to update every week or 2. the version that just says Galactic Cizilizations IV, and doesn't include Test Edition, updates less often though, and is better for people who want to play longer games right now.

We normally recommend starting a new game after an update.