I cannot play Initial DSD mode with my dCS Vivaldi [Answered]

Dear all,

I use Roon installed in MacPro to manage and play my library throug dCS Vivaldi system.
PC connect with dCS Upsample by USB in (I use Nordost Valhalla 2 USB Cable)
I can play DSD only in modes: convert to PCM or DoP but not Initial DSD.
When I switch Roon to that mode my Vivaldi DAC changing sample rate continously and of cause no music play.

The Vivaldi requires DoP for DSD playback. The “Initial dCS method” is there to support a very old product that’s a couple of generations old.

Oh. Thanks