(windows 7, running the game through steam)
I've encountered a couple of bugs:
1. During combat, if I open a units detail screen during an opponent's turn, the combat will stall. The game still responds and I can use the auto resolve button. In this case, the combat resolves unfairly in my advantage. (my units get 0 damage)
2. If I get a diplomacy popup, it's possible that between me pressing the button to go to the diplomacy screen and actually getting there, I get a combat. If that happens and during the combat I go to an unit's detail screen, I can get redirected to the diplomacy screen. I can then negociate normally, but when I exit the screen I'm no longer in combat. The units that were in combat are all alive on the map and the turn won't end.
3. If I damage an unit using Crushing Blow (the double damage at the cost of the next attack skill), the hp bar of the targeted unit won't update.
(following issues not repeated in more than one playthrough, also didn't keep saves etc, sorry)
5. My stock racial is supposed to make my caravans invulnrable, yet I've had multiple popups claiming my caravans got killed by enemy units.
6. I've seen caravans get stuck in front of hostile cities, unwilling to move on even when there is an alternative road.
7. I've had a video issue where ALL text dissapeared in game and in the menus. Happened only once, could still save the game normally (even though I had to guess which button was the save button and didn't see the save game names).
Additional feedback: (non-bugs)
i1: Some units of the empire of resoln were classified as much stronger than they were. I've been attacked by medium groups that couldn't tackle my weak city militia/archer + 2 weak units (militia+spearman) on auto-resolve. (difficulty: challanging)
i2: Some faction colours look too much alike: Resoln and that one with an Y. (white blueish colour if I remember right) To a lesser extent Capitar as well.
edit: looks like I misinterpeted the interface, point 4 was not a bug and I've removed it from this post.