Sorry for bumping this thread. I am currently working on some concepts in UE4.61. I have added your cel shading project from and it works great. However, when I try to run this on an Android mobile phone (Samsung Galaxy S5) I see no kind of shading effect…
Now, I am very new to UE4 and am still learning, but I was wondering if there was something simple I was missing? Hopefully, it’s just a setting I need to alter, then I can buy the full version of the shader for use in my games, 
Thank you for any help given, 