I've pushed a small update that should solve some of the issues in the demo, most specifically around not being able to attack Vituria.
The save issue still remains, I'm in the progress of replacing the entire system with a custom one - currently it's just automated and regardless of whether it's buggy it still won't work in the full game due to being too slow and causing hitches every time that the game is autosaved - very annoying.
The next update is going to have a revamped diplomacy screen (removing the dialogue system and making everything more of a sandbox-type experience where the player makes dynamic choices and actions to defeat the emperor, rather than following a railroaded path), 20-40 more unit types, more buildings and proper spying.
- Joe