Question Renderer of Particle System won't stay ON

I'm trying to make a "shimmer" effect on a prefab in my UI. When I run the application the "Renderer" checkbox unchecks and nothing is displayed. How do I either A) Get the renderer checkbox to stay checked. Or B) Get the particles to show up without the renderer checked.

I was able to do this in a past project successfully, so I'm not sure what the missing ingredient is. Any help appreciated.

Unity version - 2021.3.15f1
Android build

 

I fixed it. I was using the Unity script UIParticleSystem which I read overrides the Renderer or at least leaves it turned off. I removed the script, checked the box for Renderer and all started working. Hopefully, this helps someone else.