Hi, I don’t recommend using the Niagara System Widget inside of the software cursor, since it introduces several issues. Instead I recommend having the Niagara widget inside of another fullscreen widget - like your game HUD / menu, and update it’s position to follow the cursor; as shown in the tutorial: https://youtu.be/1O4fLjqosBg?si=0IgRMaP7TGJZwamB
You’re encountering the problem because the widget requires the particle system to be spawned and simulated in the game world. Because of this it can’t work in cases when the world doesn’t exist - like during level loading, and the particle system gets destroyed on level change. There are also other issues with the widget inside of the software cursor that are causing crashes on certain devices. For these reasons I recommend the other approach.
Cheers!