blloming field bug on boss

morning after last patch in 0.3.0c, have issue with boss fight,
after clearing whole map went to boss zone, and when he droped to half HP cant do anything to him.
i am playing infernalist with minions and when boss droped to half HP minions stop atacking him, just like he wasnt there they just stop and folow me without attacks, boss making all attacks, my minions just look at me :)

https://i.imgur.com/elB1hsm.jpeg