WD_Black SN850 not detected by BIOS on bootup from power-off

Did you get a solution from WD yet? I did not hear a single constructive advice and there are more cases than ours. Also on other MB’s. Another user on this support board has the problem, that the drive disapears when waking the pc up from sleep!

So I am pretty sure that the problem is the WD Firmware and the energy management.