The loading screen in single player is stuck on 96% with the 'generating buildings' tag. On the last game I clicked on save and exit to main menu while the character was on a moving ship.
So, i got in the editor for that game itselt after it being stuck on loading and found my charater on the base of a ship. The problem is that the ship that i was using already has a good infrastructure on it and in the editor was showing only the base of the ship. I tried deleting that base but it did to work. The base of the ship was stuck there.