My SYS-7049A-T (X11DAI-N) system has a Samsung M.2 Pro 970 on the motherboard, the BIOS display the M.2 device with ????? at the end of the model number. Is this a known issue?
Do you have any third party AOC adapter like M.2 or U.2 adapter installed on the system? If yes, try to remove it and see if that's the root cause or not?