Forecaster Janna audio bug

So i was playing a game as Janna and i was user her forecaster skin. Now when I'm just watching my adc farm while playing support i always just spam my joke or taunt. But while i was using my joke i noticed that the joke from forecaster Janna was overlapping with the original default Janna joke so it was playing the default Janna joke on top of the forecaster Janna joke. Above is a picture of the game statistics in case it might have something to do with what champions were in the game or anything like that.