Failed to get an accessor of secondary boot device while clonning

Hi. I am trying to create a clone of my running TX1 (JetPack 4.3) but when I enter the below command from my host PC after putting the TX1 in Recovery Mode:

sudo ./flash.sh -r -k APP -G backup.img jetson-tx1 mmcblk0p1

I get the following error and the whole process stucks.

[   0.3941 ] 00000004: Failed to get an accessor of secondary boot device
[   0.3957 ] tegradevflash --oem platformdetails storage storage_info.bin

I can not figure out what this error is all about. Is there any solution or workaround for this?

hello doruksk,

you may check Topic 82908 as see-also. please apply the update in post #21 to replace below binary for verification.
i.e. $OUT/Linux_for_Tegra/bootloader/nvtboot_recovery.bin