I haven't fought Kzarka yet, but I'm wondering if the Kzarka's Latent Aura is in our version? On PC you get one of these for each Kzarka you fight, and can exchange 100 for a Kzarka's weapon box, so if you have no RNG luck for 100 Kzarka fights, you still get a guaranteed weapon box. 

I've now done Kzarka a bunch and can confirm, I am not getting any Latent Aura.

I'm OK with a certain amount of RNG, but I hate extreme RNG like Kzarka drops, I sure hope they add this into the game, I can easily see my luck being bad enough to go 100+ without a drop.  

Yeah no Auras