It could be a code order problem.
make sure the code for the universal Email behavior is after the code for the Store Order Summary behavior. The store order summary behavior creates the $_SESSION["segufix_OrderID"], if the email is sent before the order is stored in the database, the $_SESSION["segufix_OrderID"] will not be crated yet.
In the Universal Email behavior, you can add your address to the CC or BCC to have a copy emailed to you.