RB Master Output always include PC Audio

Hi,

Using RB 5.6.0 on Windows 10. When trying to route the Master Output via settings I get the following options:

(1) -
(2) Pioneer DDJ_SR ASIO : MASTER + Speakers (2- High Definition Audio Device)
(3) Pioneer DDJ_SR ASIO : MASTER + Speakers (Dell USB Audio)
(4) Pioneer DDJ_SR ASIO : PHONES

So selecting any of the 2 master options also reroutes the audio back to the PCs speakers. Is there no way to just route to the controller's MASTER output without also routing it to the PC? I believe this was possible in previous versions?

Thanks,
Paulo