I also have had the attack through the town (my own only) then remain on the tile that the attack was triggered from, and suspect it is the towns being considered 0 travel distance, but with the changes coming in Beta4 we will have to re-test this one
harpo
I don't think they are changing it though. Doesn't seem so on the preview images.
I did always say only the "center" tile of the city should be where you "enter" the city, and the rest is just graphics to improve how the game looks, so you wont have the teleporting some people have a problem with.
Sincerely
~ Kongdej