Error "Couldn't decrypt Vault contents" message in job reports
Magnus box tried to access the Storage Vault, but it contained data using an unknown encryption key. Probably this Storage Vault is using the same data location as another Storage Vault (from the same- or a different- user account).
Each Storage Vault in a user's profile is automatically encrypted on first use, with a randomly generated key. If you reuse the data storage location that was already used by another user's Storage Vault, Magnus Box would not know the encryption key for the Storage Vault, and would be unable to access it.
If you intended to share the same Storage Vault between multiple users, you should log their devices into the same account. Otherwise, you should use a different physical location for each Storage Vault.