As the image, I set a Niagara system to generated trail behind the cube, it’s all right in editor when I close light mode, the ribbon material is default, however, when I run this demo, I can’t see trail behind the cube(I have a UDP port to receive message to make the cube move, there should be a trail behind the cube as the image), I suspect is light mode lead to this. Is my suspicion correct? How can I modify it to make it correct? Or, is there any way to debug this? Thank you!
This is screen shot when I run this demo:
This is the cube actor:
