US-2x2 Windows defaults to "Mixing driver 1 for US-2x2 & US-4x4" - no audio

[Jubei Kibagami]

When I startup my computer, Windows 10 audio output defaults to:
- Speakers Mixing driver 1 for US-2x2 & US-4x4
but the audio coming through to my headphones has very low volume. If I manually switch output to "Speakers - US2x2", only then do I get proper level audio to my headphones. How can I rectify this situation so that I always get Speakers - US 2x2 without having to manually change output?

Windows 10 version 1903
TASCAM US 2x2

 

[Jubei Kibagami]

Turns out my driver was 2.13 and by upgrading to 2.14 fixed the issues. Credit to TASCAM Support in Germany for the solution.