Exact same problem for me with Linux, where I never had any problem for >10 years with 4 different usb sound cards.
It can’t be a hardware problem, or a driver problem on th OS side.
There is clearly a serious bug in the software inside the QC in the way it handles the usb connection.
NeuralDSP should stop telling people to return units or buy other cables.
They should look at their code and fix it!