[GAMEPLAY] Sion's emotes stop working randomly during game

So i got into game and i wanted to get test out Sion in a custom. When the game started his Emotes worked fine (talking about Laugh/Joke/Taunt). I used a few at the fountain, then over at blue camp and they worked fine.

However, at some point in the game, i cannot determine when, his emotes stoped working. I would hit any of them, Taunt, laugh, or joke, and while the animation went off, the VO never did. I tried several times, waited to make sure no other VO line was running, and it just simply did not work.

As someone who loves to spam these and taunt his opponents, especially considering Sion has like 15 taunts and jokes, i hate the fact that i cant hear any of them, which sucks since i can tell a lot of effort went into making this new VO.