Everybody know that when you want to launch a star that has planets, there is a small button in the corner of each star-button that says launch entire system (something like that). Well that button doesn't work in any star, it only works with the sun. Another problem is that there are few simulations that my game can't open. For example:
50 brightest stars or Milky Way Galaxy.
Furthermore whenever I exit the game, it crash, it appears the window of "Universe Sandbox 2 has stopped working". This is the first time I have too much trouble. Thanks for watching.