2. Example 8; Example 9; Example 10.
7. More on this, load the autosave and tried to continue, it crashed when I reached turn 71. I changed what I was researching, ship movements, didn't help. I abandoned the game and started a new one.
8. There is a problem in faction relations. The Dark Yor didn't like my military build-up, all I had was the survey ship and two scouts.
9. Also look into power calculation. I had 4000 to Dark Yor's 3500, but I had like 5-6 planets.