A couple of observations:
The aura coding above is working and placing the AURA correctly. If you are trying to use a custom visualization option or to show a border, the visualizer only works with 2D shapes, sphere and cube, it does not work with 3drect, or cone.
What you can do is add an additional AURA effect to trigger the border for the wall or a custom wall of fire graphic.
AURA: 60, point, red
(You can replace "red" with whatever color you want to with a custom image name that you have created in the Aura's window.)

