Client sound bug while sitting idle between matches

The client since Patch 9.13 has been crashing when I am sitting idle for a few minutes with the client window open. It will have a loading bar pop up then disconnect me from chat then reconnect me to the chat. Then it will try to reconnect and loads back up and works perfectly except that now there is no sound. I know it is LOL client bug and not my comp bc i play all steam games just fine sitting idle none lose sound at all and I have software that tells me my MBPS is at 300 at just about all times. Btw I am on windows 10 software fully updated.

PS. just now while writing this Bug the Client just did it again just to give you an idea of how quickly it crashes.