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How to display point clouds using the particle system?

Hi, all,

With reference to this forum post (How to place single GPU particles at specified locations? - Blueprint Visual Scripting - Unreal Engine Forums), I’m trying to display point clouds using the particle system.

I downloaded a project that displays a bunny as a point cloud from GitHub - geary/UnrealBunny: Stanford Bunny point cloud in Unreal Engine and pushed the play button, but nothing was displayed on the editor rendering area.
According to the forum, points can be drawn within 2 ticks.

How can I display point clouds?

OS: Windows 10 home
GPU: GTX1050Ti
CPU: Core i7-7700k
Engine version: 4.19.2.

thanks in advance.