Error in creating instance from mikrotik image


I Could create an instance of mikrotik routeros by iso image.
But when I convert it to image and want to create a new instance from it the below error occures:
Error: Failed instance creation: Failed creating instance from image: Failed to run: /snap/lxd/24846/bin/sgdisk --move-second-header /dev/zvol/default/images/4ce1fa2be5df1e80162165bfe54135d5b50c6ec66ad2ef9240af3c3c947c7a78.block: exit status 2 (Invalid partition data!)