We reported this up a few times, but we could never find a repro for it weirdly. We’ve been given the steps countless times but for whatever reason it doesn’t happen for us 
I’ve raised a bug for the missing “boom” though, I doubt it’s intended.
@SirKruber do you have an example of how it used to sound you can find? I’m coming up short in my research and I’m being quizzed hard by our sound designers!
So the original sounds as depicted were totally not intended. Huntman becomes one with the shadows. Sneaky sneaky. THEN BOOMSTICKBOOMSTICKBOOMSTICK. It just didn’t make sense in light of the motivation of the activated ability.
devtrackers.gg