Flash a configuration that emulates a Jetson Orin NX to NVMeSSD

I tried another NVMe SSD, but the same error appeared.

I think that there is no problem in NVMeSSD. bacause I can flash NVMeSSD without emulating Orin NX.
I also tried my first posted command in R35.1.

$ sudo ./tools/kernel_flash/l4t_initrd_flash.sh --external-device nvme0n1p1 -c tools/kernel_flash/flash_l4t_external.xml --network usb0 --showlogs jetson-agx-orin-devkit-as-nx-16gb external

It works correctly.
So, I think the some changes in R35.2.1 are causing this error.