Sound crackling after OBS closing

Hey guys,

I own a Elgato HD60X and use it to play my switch 2 or PS5 on PC and stream it to other people using discord or OBS. I do have this problem a long time now, but when I close OBS the sound start crackling quite and often. I do have no idea why it is. I changed everything to the same Bitrate, updated everything etc. Maybe someone here has a idea why it starts crackling after OBS closes.

Thanks