Anyone else have voice dial issue?

Little background info:
I'm on Dirty Unicorns 9.1 android v 5.0.2'
and typically have an LG G watch and plantronics backbeat pro BT headphones hooked up.

If I attempting to make calls using "ok google" both directly to the phone or through the watch, it seems to work. The issue I have is through the headset. When making calls through the headset I get brought to an old looking "voice dialer" pop up that always force closes. Is there a way to link my BT headphones to the google now/ok google voice prompt? Or at least a way to get the "voice dialer" it is using to work?