Potential bug report

Well i have read and seen recently the pve leader boards no longer working, but along with that, is it just me or has loot pool functinality slightly changed? From what i used to know, running solo, you get mostly gear related to your class with an ocasional peice of random gear from another class, and when your running with a hireling, you get mostly just gear realated to either class your running for each charevter respectivley and you vary rarely get gear for another class. But recently ive noticed running two wizards, i am very commonly getting gear from other classes. It dosent bother me, but i am curious if this is a bug or if im just confused.