Don't know if it has been reported yet, but the new Topping drivers solve the issue that the DX3 pro would not switch back to lower sample rates after playback of high-res files. For instance when playing 24/192 audio trough Foobar2k, switching to Spotify streaming it refused playback. You had to unplug the USB and re-plug it to re-set the sampling frequency. That is not the case anymore with the new drivers.