Broken Icons/font in Windows Terminal


I’m trying to configure Windows Terminal to use this fancy icons & theme for Windows Terminal
I followed Scott Hanselman youtube video. https://www.youtube.com/watch?v=lu__oGZVT98

But looks like that I did something wrong with the font! It’s broken as you can see below small squares instead of showing the icon or font character.

enter image description here

What should I do to fix it?