I'm not sure if I'm just bumping some button, but it appears that the chat box likes to open up at random.
Also, I noticed that quite a players and NPCs that I fought would teleport around, basically making them untouchable.
I also noticed that my chat box would open randomly.
I feel like Knights need more mobility; they can't compete, much less catch up to, a class like the Ranger.
Occasionally, I won't be able to loot an item; the item is there, but when I right-click it it does not enter my inventory.
Also, I think it would be good to add a setting to disable grass for the lower-end PCs out there; in most games I've played, grass tends to be a performance hit to the lower-end PCs.
Lastly, I think that damage splitting, as someone mentioned above, should not exist; I think that all hits, regardless of number of targets, should hit their full strength. If this is too much, there should be some skills that only hit a single target and some that hit multiple targets, or AOE/single target skills.
Having damage splitting in place will ultimately hinder the ability of groups to take on groups, be it a fight of same size vs same size or smaller vs larger; if all the damage is split to minuscule portions, assuming I understand the mechanic at work, fights will last forever when the game is released.