Checked into the server today, the moon is gone. Station is fine, but zero gravity. Pirate base still 18km away where the far side of the moon used to be. Also a lot of asteroids and debris pretty close (visual range). Previously the asteroids all started out much further away. Station is in exact same position it was before with the same view of the red planet etc. Restarting the server didn't help. Posted in Space engineers forums.
This may actually be of some benefit...