Gnar's Q no longer makes any noise when impacting someone out of sight

After last patch (5.11) I've noticed something that really grinds my gears: When as a Gnar I throw my boomerang to someone hiding in a bush or just out of sight, I dont hear the impact noise it used to make. This is really annoying because it was something really useful to discover the enemy jungler in lane or to avoid facechecking a bush with the entire enemy team in it.

This has happened me every game in SR, idk if this happens on TT or Aram too. There's not any screenshot as it is a sound bug.

Excuse my bad English :)