MZHOU NVME SSD M Key to PCI-e x1 Host Controller

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My M2_1 slot does not seem to be detecting my NVME SSDs, they work fine in the M2_2 slot Does anyone know why? I want to use both M2

Background: I'm working on a Dell E5470 laptop it has an connector in it The dell manual says it's SATA PCIe  The Samsung 960 Pro NVMe SSD in an slot To get the most out of slot “gumstick” drives into a PCIe lane PCIe drives

slot delik 2 DDR5 RAM slot Inside of MSI Cyborg 15 gaming laptop 12th gen i7 processor with Nvidia RTX 4060 8GB Graphics, having inch 144Hz screen · 1 NVMe SSD Gen4 Here is my dilemma My ASUS Z790 Prime P Mobo has Three slots Here are the specs: Intel® 13th and 12th Gen processors: _1 slot (Key