@petrik the problem is widespread, users of Aurender, Auralic Aries, and Melco have all reported similar issues with USB playback.
SOtM sMS-200-Ultra, SOtM sPS-500, Melco N1A, Rega RP8 (Exact 2), Core Infinity D440 Pro (2 x D220 Pro), Audioquest Diamond Ethernet, USB, Audioquest Castle Rock, Sonus Faber Olympica I.