A pond outside the Alexandria (?)

[Maltz]

There is a pond just outside the gate of an Egyptian town, blocking one of the entraces. I guess it is Alexandria. Yet it doesn't seem to be an intentional landscape, because there is no decoration of it - just some shallow water built up in the low terrain. Even worse the pond flashes - light and deep blue every one second on my monitor.

The AI sometimes get stuck when they try to sally from this town - half of their army go out but can't cross the shallow water, so they stand there to watch the other half of their army fight.

I wonder whether anybody else has seen this and think it is actually a "bug" to be fixed.