Volumio Primo via USB with Smsl SU-9

Hallo, need some help.
I use Volumio Primo together with DAC. Untlii now it was Ifi zen dac v2 via USB audio cable. Worked super. I bought Smsl su-9 and the problem occured. The same cable USB audio as with Ifi Zen but… no sound unfortunately. Primo connected with Smsl starts to work unstable.
Anyone ? Help

There’s a few comments here. Seems it is possible to get it working.

Thank U Simon. I have already read it. But there is no info about volumio primo - probably it is different situation when using windows