Declined card after Authorization when closing out with Tip

[Honree57]

We have had several issues when closing a check when the card comes back as Authorized for the initial amount---then, when they add the tip and the server closes out the check, it comes back as Unauthorized.  AND---the customer has left.  We get stuck with the entire bill.  This has happened six times now.  This is unacceptable.  How does this happen and how do we prevent it? Thank you!

[Honree57]

Thank you, RCMCK!!!  It was actually checked for some reason.  I unchecked it and hopeful it will take care of the problem. Thanks again, I was mystified.  So relieved!