CBU Error Code 1 (Internal error) - "Could not retreive disk signature"


I was trying to perform backup of Track0 & MBR of external USB drive, but I have received following two lines of log:
Error occurred. Could not retrieve disk signature.
Backup has not been performed [translated from other language] - code 1 (Internal error).

How can I solve this issue?
I wanted to try MBR backuping because I have encountered today “Disk uninitialized” and I’ve lost my data :frowning:
I think that backuping MBR would be enough for such scenario, but currently it is not possible :frowning:

Best regards,

Sorry but you will never get a reply. I’ve had issues with restoring my crashed system for months now and tried all the nonsense and hoops possable to jump through. Geek useless buddy started a thicket posted on this forum and NOTHING. You are ■■■■■■■. I will never use one of these products ever again. I had problems last year and with luck I was able to restore my system, I should have learned. Now I have. Good luck to you.