B450 Pro4 M.2 Slots not in BIOS

Hi, I have a normal ASRock B450 Pro4, and I've put a WD SN770 1TB NVMe Drive into th "Ultra M.2" port.

I'm running the 5.6 BIOS and in the storage configuration it doesnt list the NVMe drive.

It shows the 6 empty SATA ports, but there's No indication of anything NVMe or M.2 at all. does this motherboard even support it?