When you connect a usb audio device, such as a usb head set, all audio will disappear. The game then needs to be reset for any changes to take affect.

This doesn't occur when using an analog device.

Steps to reproduce:
Get a USB head set.
Start game.
Plug head set in.
Notice sound isn't playing.
Restart client.
Sound is playing through headset as desired.

What I expected to happen:
Plug headset in, and sound will go through to that instead of stopping all together.

This isn't a huge glitch/bug, just a tad bit annoying.