WIndows 10 Default Audio Device won't initially pick up

Since upgrading to Windows 10, I've discovered a bug where Mumble won't send audio through my default audio device until I click "Apply" in Audio Output settings.

To replicate: Assuming I start with mumble working, bluetooth audio is working correctly

• In Windows 10, disconnect bluetooth headphones.
• Connect bluetooth headphones ** Notice that in Mumble, I will not receive audio, which means their little blue indicators do not indicate chatter, either ** To fix,
• In Mumble Configure > Settings > Audio Output... click Apply