Thanks to VamBam, he noticed that the alignement of the asteroids was incorrect (especially in realtime). I didn't even noticed it since I was mostly doing static shots. I've updated the package without bouncing up the version number ( so it is still v1 ) since it is not a content update and the package has just been released.
Please redownload the package to fix this issue. You may need to delete the original var first.
I am really sorry for the inconvenience.