[GAMEPLAY] Replay sounds getting 'corrupted' when I make a highlight

Hello people. This bug decided to introduce itself more than a week ago when I tried to make a highlight out of a replay of one of my games. I realized that instead of hearing the game's casual sounds, the highlight's sounds are kind of corrupted, like it's muted but has some static noises. I sent a highlight to my friends and they heard the same thing. This bug applies to both the highlight in the client and the YouTube video.

How to reproduce? Simple. Get a replay, make a highlight and try it watch it in your client \ upload it to YouTube. Something goes seriously wrong with the sounds and it just really bothers. The example video of this bug demonstrates it perfectly.