So i've found those bugs:
the terrain during a battle falls in to nothing.
bombs sometimes don't hit the ships and gets trough terrain.
i hope that helps you Zarkonnen! :)
Can you expand a bit on what happens when the terrain falls in to nothing?
When i start a Battle the terrain falls in to nothing but i think that it lands outside the screen because the enemy ships still shoot to the def. Structures.
And also if i try to attack/defend the city where the terrai has fallen it wont regenerate .
I have also found another bug where the enemy ships gets outsied the screen..