TX2 NX - when PCIe devices connected over PCIe Switch, NVMe Drive sometimes fails

Dear Nvidia

We have a Problem with the TX2 NX Module and PCIe Devices.

On the x2 Port of the TX2 NX is a NVMe SSD connected (M.2 Key M). On the other x1 PCIe Port, there are 3 PCIe Switches concatenated with also PCIe Devices additionally connected to them. We see now sometimes after reboots of the system, that the NVMe drive is not correctly initialized and the device is lost with the following message:

nvme nvme0: Minimum device page size 1324217728 too large for host (4096)

nvme nvme0: Removing after probe failure status: -19

Additionally we see an error message of the pcie-controller:

tegra-pcie 10003000.pcie-controller: PCIE: Response decoding error, signature: 11120005

When we use the exact same setting with a Xavier NX Module, we never see this error, therefore we think it is something specific with the TX2 NX Module.

Is there like a limit of devices that can be attached to the PCIe Ports? When we reduce the devices attached to the x1 Port (connect only first PCIe Switch), the NVMe gets always initialized without an error.

Let us know if you need any additional information.

Thank you.

Best regards