The things i've discovered so far:
1. If saving and reloading a game while the chatbox is active, or if the chatbox was active and the arena match was finished, and then a new one started, left clicks are not recognized by the game (e.g. you cannot move, you can select and target with skills but cannot cast them), up until you activate and deactivate the chatbox.

2. The one-handed AP attack cost is beyond my understanding. In the one-handed axe description it says 1 AP, when targeting a closeup enemy it says 1 AP, then when you attack it takes 2 AP, and always does that.

3. Sometimes, including campaign and pvp-arena, character begins his turn with 6 AP, with no apparent reason - no AP was saved the previous turn nor it was skipped etc. Sometimes this happens after adrenaline (although it should be quite the opposite).

4. If using adrenaline with 6 AP, you get only +1 AP, for a total of 7, instead of 8.

5. Enraged and fortified on the same character gives flickering black-red rubbish all over that character. I guess cloth flickering and jumping all around, especially on elves, goes here too.

6. The ladder animations are obviously not finished, especially for elves and lizards.

7. The movement AP if walking through oil is not calculated right, but I think it was the same in D:OS1. However, pathfinding is much worse now, in the first game characters tried to maximally avoid hazardous clouds and surfaces.

8. When using cloak and dagger while being invisible, in the pvp arena, the opponent can see the place you jumped from and the place you landed to. Not sure if it's intended this way, but IMO if the skill doesn't create smokescreens or something like that, the animation shouldn't be visible.

9. Once a teammate in a campaign could hit an enemy standing on highground from lowground with his two-hander. Looked weird and funny.

Guess that's all for now, will add if find something else.