@JessT  The workaround only worked for me.  We attempted this with my other user and he is still unable to get the changes to save.  He is currently sending things to himself on his Outlook e-mail, making changes, then sending the invoice to the client from there.  This is not a long term, viable option.  Please let me know if we can open a ticket.  Obviously I am not the only one with this issue.

Thank You