When the option to enforce a working directory is set in Vault the Save-VaultFile Cmdlet without the "-DownloadDirectory" parameter does not download the file to the Vault workspace. Instead the file is downloaded to the User Directory "C:\Users\<USER>\Documents.."
It is possible that there is still a reference to the path pointing to the User documents and powerVault is looking at that when downloading a file
To avoid this issue you can execute following code once to set the working directory:
This needs to be executed only once.