after DLing the (hotfix) version of 1.06 I experienced many bugs, here are the most notable ones (they are present in the save file)
Battle Bug:
50% of my battles the enemy moves 1 or 2 turns and then stops moving/acting. Not reacting to anything I do, not even counter-attacking my attacks, they become non-responsive. I saw this a few times for minor battles, there is a major battle vs an enemy capital with many forces I am about to attack in the save file. Reloading/rebooting did not help, its essentialy game braking.
Shop items Bug:
my leader has a different set of items he can buy than my merchant champion, furthermore they cannot equip the items they respectfully buy.
Ex: The merchant can buy boots+1move that my leader cant use, he also has stronger armors. The leader has weaker armors he can buy that the merchant can't use.
Double Build:
I find that sometimes after building a +1 resource building I can build a second one right after. Isn't there a limit of 1 per city? If I build one, exit, and re-enter city screen I can no longer "double build". There are several such double build structures in que at my northernmost city (Called Naza Bazaar).
Upgrading my base units results in some funky variations to creating a new build
ex: Peasants give me 13hp +1 attack but -1 move -1 armor compared to an equivilant build with a bow.
http://www.filesavr.com/MhK2YetN

as a final note, this difficulty setting (hardest) seems a bit too easy. I played out the game by creating a warrior and rushing the first few nearby cities, then with the gold/loot I was able to buy mounts and bows for my champions. Now I am about to take over my second capital and double everyone else in size. Even minus the bugs the AI needs to be improved (and its starting defenses buffed a little to prevent rushing)