Hello,
I’m new to the node material system of UE4 and i’m looking to add a glitch effect to my hologram material.
In my mind this effect appears from time to time probably using a time node, but i can’t figure it out 
Any help would be greatly appreciated, thanks !
I think shader in UE4 can become very complicated very quick so I suggest watching some beginnner tutorials first.
Epic Games has some great tutorials on their youtube page. https://www.youtube.com/user/UnrealDevelopmentKit
For a glitched shader you can check out this tutorial which is unfortunately in russian, but I hope thats what you are looking for.
Good luck