Playback issues with Lumin U2X and MSB DAC

Evaluating a U2X as a streamer to my MSB Premier DAC. But I cannot get the U2X to playback over USB to the MSB DAC when using Roon.

If I use e.g. Qobuz Connect from the Lumin app, playback over USB works, so I doubt this is a hardware issue.

Using the dedicated DAC USB connector on the Lumin U2X.

Any ideas?

Mystery solved. Turns out you cannot have the MSB DAC enabled as a MSB DAC Renderer and a MSB USB DAC in Roon at the same time. This causes the Lumin to not be able to start playback.

Side note; A Sotm-2000 streamer does not have this issue (for some reason), thats why i took a while to find.

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