ERROR "Unrecognizable storage URL" when selecting SMB Share as Storage

I want to Backup my Data so a SMB Share on another Server.
So i select ‘Local disk’ and Point to the Share.

After selecting i get the following error:
“ERROR Unrecognizable storage URL: \smb-server\name-of-share”

A Workaround is to map the share as a network drive and select this.
But i want to use this as a scheduled task without any user logged on.

Is there any possibility to implement this functionality?

This is an easy change and should be included in the next update