I was reviewing my AD User attributes being backed up and have noticed that my sIDHistory attribute was not included and wasn't an available selection to be backed up, even after I performed a refresh of the attributes. After manually adding sIDHistory, I selected it to be backed up. How can I ensure that all user object attribute values are being backed up that belong to the users? This one was missing, how do I know another might be missing as well? Are there specific attributes I need to manually add to the backup? This isn't even a custom attribute.