Game mode "Mercenaries" Grommash`s Task 12 lags

Grommashs task 12 : Deathblow 12 times. I make this using Grommashs Blood Fevvor around 20 times but it count only 3. Also task says “deathblow” so it can by any mercenary which has this effect. But no. I think I execute this task with King Crush (deathblow around 70-80 times with Apex Predator) but it does not count even 1 time for task counter (Grommash was a member of this mercenaries party). I think it is bug or I am not correct in my understanding ?

  1. Broken counter for Grommash`s deathblow
  2. Not count any other deathblow (for example King Crush)

Fixed after restart and kick King Crush from party.

  1. Grommash can use any ability, not just the first one. Even an enemy attacking Grommash and dying counts. However, it only counts undamaged targets, so your attack must one-shot the enemy.

  2. Most tasks can only be done with the mercenaries that have them, even if it does not say.

thanks for the explanation