Tested it just now, yes its crashing. I am now fixing it.
Edit: Unreal Engine 4 Glass Material 4.12
I decided to upload it to Gumroad, its easier to update / to notify updates to users. Simply choose zero for payment and " I want that".
Let me know if its working / if you encounter issues.
Thanks @Maternal!
Mine is rendering black though, not sure why, I haven’t modified it, I just dragged and dropped it into my folders. I’m using 4.13
I just tested again in 4.12 and it still just rendering black, no lighting or shading 
Hm. Which grafics card are you using ? Since i adapted this from the Nvida Flex Demos, perhaps thats something unique to Nvidia ? On the other side, i don´t think it is limited to this grafics card. Hm. Perhaps the reparent for the material instance is broken or you need to set up some values.
IMPORTANT EDIT/NOTE : And its broken if you use it on resized Editor window. Hit F11 to see the window in full screen to see it without buffer glitch.