I dont know which power ports supply the M.2 slots on your motherboard, but make sure you got all of them in correctly. Reseat your (20+4) pin connector, CPU (4+4) pin connector and the 8 pin PCIe connectors. Seems like a possible loose cable. But I have no other ideas what this issue could be. Check Event Logs and Device Manager events to see if that drive has any errors while functioning, this might give further insight on what might be wrong. SMART Data would be great to check too.
Corsair toolkit link below.