I endeavor to perform file backups on the "C:\Users\Public\Public Documents" folder of a Windows 11 Enterprise multi-session virtual machine hosted in Azure.
Yesterday I configured the machine via for an On-Premises\Files and folders backup via the Recovery Services Vault and everything looked great, but after last night's first scheduled run things are not great.
In Backup Items (Azure Backup Agent) the "Last backup" is grey with a hyphen, not Success or Failure.
Clicking the details of the Backup Item shows a recovery point as expected but again the "Last backup status" is grey.
On the virtual machine:
Microsoft Azure Backup won't load CBSnapIn.dll reports "MMC has detected an error in a snap-in and will unload it" - event details attached.
(At least I think the event details are attached, I clicked the paper clip and uploaded the file anyway)
In uninstalled/reinstalled MARS and it ran and I was able to mount and restore from the back up.
Subsequent attempts to run MARS failed (same error); I wanted to initiate a "Backup Now" but was unable.