I am not sure if this is just an issue with just the mac or whether I am just setting up the game wrong but the sky and some items do not have textures.
Mercenary Cavalry do not have horses (again could be an issue with the mac)...
Also this is not much of a bug however it would be good if the categories in the campaign could be altered instead of labelling all non-mounted units as "Archers".
I would post images but I have no idea how to screenshot the game on the mac version.