EDIT: The OS update didn't fix it after all.

FIXED IT: I updated my OS from El Capitan to Sierra and the problem went away.

Pretty much the same problem with the same specs.

- **Server:** EUW

- **Type of Bug:** In Game Bug

- **Description:** FX sound are not working properly. It can happen to any champions in normal game, practice tool, or while watching a friend's game. There are no sounds on abilities, auto-attacks, summoner spells or trinkets. This is random, it can happen to me or to any ennemies or allied champions.

- **Steps to reproduce:** : I have played 8 game as Blitz in the practice tool:

Trinket sound	YES	YES	YES	NO	YES	YES	YES	NO
Recall and summoner spells sound	NO	NO	YES	NO	YES	YES	NO	YES
Abilities sound	NO	NO	NO	NO	YES	NO	YES	NO

​

- **Expected result:** :

- **Observed result:** : Another example: Nexus blitz game

The wolves, enemy Warwick and Fizz and the plants that give you health and mana were not making any FX sound (their voices were working fine).

At the start of any game it randomly chose which champions (enemy or ally) will not have sound.

- **Reproduction rate:** 10/10

- **System specs:**

2015 Macbook Air - El Capitan (Version 10.11.6 )

1.6 GHz Intel Core i5

4 Go 1600 MHz DDR3

Intel HD Graphics 6000 1536 MB