"Death Nova" Bug

The grandmaster trait "Death Nova" allows your minions, when they are killed, to create a lesser poison cloud that inflicts a flat amount of damage when it first appears, as well as apply poison over a short time.Here's the problem : the damage done by the lesser poison cloud when it is first summoned only appears in combat logs. It does not appear on your screen like when you land a common strike.Also, it appears that sacrificing a minion (Such as Bone Minion, Flesh Wurm and Blood Fiend), while it does summon the poison field, does not deal the flat amount of damage.