Hello, maybe somebody can give me an advice. I have the Topping D90 already for a while, but had it connected trough USB to Nvidia Shield or a PC or by Bluetooth to an older phone (no LDAC). I decided to permanently connect the PC by USB and Nvidia Shiled to use Bluetooth (it has LDAC) support. I ended up with volume control on the Shiled working only in first 3 steps and then it is on max till the top and noise in speakers whenever there is any signal transmitted (even just "silence"). Same when I connect my new Galaxy S21 (LDAC), but there basically the volume control doesn't work at all (just no sound or max sound from first non-zero step). I have firmware V1.24. Don't have any issue with USB connections (except the sound level from Nvidia Shield being low, but that is a know Android issue, PC is perfect). Anybody has the same issue?