Really? Again? Here? If I have to. Just off the top of my head:
1. Firemob projectiles hitting even though the clearly flew past you,
2. Firemob projectiles completely invisble,
3. Firemob damage registering in sudden bursts and sometimes not at all. It's quite erratic behavior without any discernible pattern,
4. Firemob summons spawning inside structures hitting you through walls,
5. Firemob "rays" not doing damage on certain occasions. Seems to be a los issue if you kite around edges of mountains,
6. Mob damage through objects... Maybe bounding box issues... but this happens in different scenarios: Sometimes when hitting some mob and hiding behind an edge the projecitles will still hit you THROUGH that edge. Sometimes not. Maybe related issue to 7.
7. Visibly connecting projectiles/rays not doing damage or NOT connecting projectiles/rays doing damage: So this seem to happen sometimes when los to the center of the bounding box is lost or regained in a short period of time,
8. You can target mobs only if you have LOS to the center of their bounding box
I'm sure that's far for everything I've encountered during my hunting times and this is probably true for many or all other mobs. After a few hours hunting a few days ago I had the same experiences. So nothing changed.
Mind you these are issues that are as old as Neocron itself... this isn't even mentioning the things that can happen during zoning, especially if you are flying. Yes those are a big part of hunting too.