Maybe this info from my comment in reddit helps MSI in some way, because i include pictures of the specs of the drive(s) and the system itself via different tools (hwinfo, cpu-z, crystal disk mark, crystal disk mark) AGAIN, with full description of the issue and all the debugging i've made (no ambiguity exists, no room for doubt that this issue started when v182Beta with AGESA ComboPI 1.1.0.1 which made the specific drives such the one i own, to not be able to be detected from cold boots but from warm boots only in the M.2_1 slot, the other slots detect either drive on any BIOS version, all the way up to v19 with AGESA ComboPI 1.1.0.2b Patch A which only detect the drives from a cold boot and this detection issue for me is 100% consistent, it's not that it doesn't work or works sometimes, it's always 100% reproducible, and past v19 BIOS, either drives, in M2._1 slot cannot be detected at all, for more info, please check the following comment, all bios settings are exactly the same for all BIOS version tested to prevent making a false conclusion):
If MSI can't reproduce the issue they are EITHER doing something wrong with their setup somehow (wrong drive, wrong capacity, drive with a different controller) or they are just lying about the fact that they did test, i am leaning on assuming the first thing.
Regardless, they should remove the drive from their compatibility list about this motherboard specifically since so many people report having this issue compared to the people that don't.
And before you ask because the second picture attached, it say for the controller of my SN850X (and the non-X) Resizable Bar Support: Not supported, i tried disabling it in the BIOS including the Above 4G decoding both at the same time and separately, it made no difference to the issue.
