In this 14 minutes tutorial, you will learn how to create a glitch effect shader from scratch in UE4. Also, I will explain the basics of the sine node and sine wave graph and how to manipulate it to get the result you are after. After watching this video you are going to have a good understanding of sine behavior as I put a fair amount of effort to explain the math behind it.
You can follow this tutorial using UE5 as well.
https://dev.epicgames.com/community/learning/tutorials/MPd4/unreal-engine-animated-glitch-shader-in-ue4-and-5