Quest Items from killing multiple mobs at the same time

hello,

iâ´ve got a little problem, donâ´t know if its a bug or just working as intended.
but let me describe this

1. i pull like 30 mobs for example
2. start aoeing them with skills (currently wl)
3. i get only one quest item if i kill several mobs with one skill, no matter how many mobs i killed with that particular skill

let me describe the situations (numbers just to explain better):
1. 30 mobs, i kill 10/10/10, get 1/1/1 quest item
2. 30 mobs, i kill 4/5/4/5/2, get 1/1/1/1/1 quest item
3. 30 mobs, i kill one by one, get 30 quest items

i !!!never!!! got more than one quest item if i kill more mobs with 1 skill.

dunno if it should work like that, or not...

thanks for "hearing" me out

r

ps: so far it didnâ´t matter which quest i was doing (currently doing the whole 40-85 chain)

 

so in other words as a warlord im kind of screwed if i wanted to do the 900 item quests

damn