Currently the way I have teamspeak configured is to use the default Windows Audio playback device which is my Xonar U7 MKII
https://www.asus.com/Sound-Cards/Xonar-U7-MKII/
This sound card supports switching between headphones and speakers by hitting a button on the device.
The way it does this is when I hit the button on the sound card, it destroys the current audio device (Example: Headphones) and creates a new one (Example: Speakers)
Example:
When I switch from headphones to speakers on the latest version of teamspeak, it crashses:
I've used this device for years without issue, but latest teamspeak crashses when I change device.
I've submitted a bug report with a link to this thread.