[Gameplay] Sion's Taunts and Jokes are bugged

Whenever I go into a match with base Sion, his jokes and taunts work fine. However at some undetermined point in the game, the audio for his emotes stop working entirely, but the animations for them are still there. This happens every time I use Sion in any mode and I find it very frustrating as I really enjoy him and want to experience his brutality through joke spamming lol. Please help.