As far as I know, it works the same way for everyone, except summy/cs hb.
It is not an AK issue, it is the default way the game works, some maps(usually dg's you can lure more mobs) but the normal is 3 mobs for each player unless you have mob lure buff(up to 6 mobs).
Top left corner of game window you have some buttons, one of it gives 3 buffs. 1. 5 x steam buffs - that u can lure 6 mobs - 2 times perd day just look at the timer 2. 200 malakites fish if killing 500mobs 3. Extrabuffs
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1. 5 x steam buffs - that u can lure 6 mobs - 2 times perd day just look at the timer
2. 200 malakites fish if killing 500mobs
3. Extrabuffs