Troubleshooting snapshot restore process for Microsoft Azure-specific cloud
When you trigger a subsequent (twice) restore operation on the same VM, an error occurs during restore operation. This error causes the following issues:
The tags from original OS disk are not copied to newly created restored OS disk.
User login might fail after the VM restore due to ssh failure.
Workaround:
Check if the ssh daemon is running on the system. If not, then perform the steps that are mentioned in the https://docs.microsoft.com/en-us/azure/virtual-machines/troubleshooting/troubleshoot-ssh-connection topic.