Hi,
When you copy the code from practicewriter, make sure you get all the code from the window (note scrollbar at right). Right-mouse click and "Select All" from pop-up will get all the code in the window highlighted for the Copy (using scroll-bar at right in the window to move to bottom should show all code is selected).
Another way to do it using keystrokes is to click anywhere inside the window and then use the Ctrl-A (hold Ctrl key and strike A) on your keyboard to Select All (text will highlight) followed by Ctrl-C to Copy. In the template editor, Ctrl-V does paste.
To prevent duplicate code from prior copy, make sure you select and delete all code in the template editor box before a fresh paste.
Danno