(Might be good to just have one pinned topic for bugs with it?)
Anyway, while I was painting some AC and playing with the fields, I noticed that it randomly generates 2B subcells of creeper at random points.
Attached is a screenshot of this, and since the creeper is on auto advance, it eats at the AC...
Note: While it is only on the edges in the screenshot, its not always jsut on the edges.
It's not random at all, and indeed intended behavior that whenever density exceeds ~2.147B, creeper is converted into AC and vice versa. It is caused by gravity/fields compressing the AC already very near the threshold.