There are some units that I cannot interact with, despite being enemies I am at war with.

Situtation: Pink sovereign declared war on me. I attacked and defeated his soveriegn, eliminating his faction (top of the screenshot). This casued the green soveriegn to declare war on me as well. However, I cannot attack any of its units save for the sovereign herself. When I mouse over them, the only option is the movement cursor, not the attack cursor.

Also, the pink player's soveriegn remains on the map, despite having been eliminated.

http://www.screencast.com/users/Cristofyr/folders/Jing/media/259d189c-2ef2-4ee4-b924-fbdb9a88f703