Problem Tron Material

Development Rendering
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1

Hello!

I have a problem with the Tron Material. I was following this tutorial: Unreal 4 Tutorial: Advanced tron material #1 - YouTube

How it should be:

353222-353216-schermata-2021-11-28-alle-143437.jpg
353222-353216-schermata-2021-11-28-alle-143437.jpg1924×1464 327 KB

My result:

353219-schermata-2021-11-28-alle-143216.jpg
353219-schermata-2021-11-28-alle-143216.jpg3360×1888 654 KB

Where am I doing wrong?

Thank you in advance!