Rose RS 250 USB output problem

I have a Hifi Rose 250 and I use the USB ouput to my Kii three speakers
I use Roon version 1.8 build 831 on a intel nuc Rock version
After I touch ‘play’ two blue popups appear one after another: “select an audio zone” and there is playing nothing.
I try again on ‘ play’ and the audio starts this time.
Is it possible that one must update the Raat version or is this a Roonlabs problem ?
I tested the other outputs and they are working fine.
The problem is that I am obliged to use the USB output.

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Closed at user’s request. Follow-up topic here: