I am using the 1.6 beta 5 patch right now. I don't know if this bug has been mentioned, but my asteroid mining bases are not showing after I build them on the asteroids. Here is a screenshot:
My debug.err is tremendous, so I didn't copy it here, but I can send it in if I need to.
I am also getting the bug where mining ships don't start mining automatically when they travel a longer distance to an asteroid. I have to move them off one space and then move them back if they travel too far to the asteroid.
Just wanted to throw those minor bugs out there.