Just got home and tested it, you're right there mate! Works fine now, gets detected as it should and drivers load properly. No more issues!When first plugged or if disconnected and reconnected, the app takes few seconds to recognise the DAC.
But after that, after every boot, the DAC should be ready and fully working.
Mine I'm sure is working because I use a single tone light, and unless is synchronized, the random colour scheme will take over.
Also, not sure if makes any difference, but I'm using a 2.0 USB port.
Some people mentioned issues with PCI-E 4 activated, but mine had it activated before, also Auto and 3.0 fixed (when using a Phanteks GPU bracket) but never had issues.
Still can't get over how good the whole setup sounds, it's pretty insane!