Azure Backup file recovery

Hi All,

 Recently I was trying to restore a file by Mounting Backup from recovery point.  There are 3 volumes of size 2 TB, 4TB & 8 TB. Out of which initially only 1 Volume was visible in Disk Management with out any drive letter & when tried to change Drive letter , below error popped out.
"the operation failed to complete because the disk management console view is not up-to-date".

I tried to remount again and two drives connected but same issue and one of the drive was offline due to signature conflict error.