I've noticed a small bug that ends up being an annoyance more than anything else. When in battle against another civ, they will attack your freighters. Good idea - kill revenue - kill enemy. However, if you build the acheivement that protects all of your trade ships (I forget the name - galactic privateer), then the enemy will STILL attack your trade routes. However, when they do so, it takes about 3 - 10(or more!) seconds for the system to realize that the attack is going nowhere. This should probably be fixed just to keep the game flowing. Hopefully this is clear enough