Particles not showing in Editor Viewport

Im working in a blank scene with nothing in it. (UE5). I migrated over a few particles from a scene that contains the Starter Content. ( the basic “P_Steam_Lit”)

The particles came over easily enough, I can see them working in the particle editor.
When i drag them onto the main Editor viewport, nothing is showing except the control gizmo.
When i hit play, the particles are now visible.

What setting would cause the particles not to show in the editor?
… Ive tried toggling the “Particles Sprites” in the Editor menu /Show
But still nothing.

Any ideas why?

1 Like

I had the same problem in a project and I solved it by selecting the particle in the viewport and clicking Build - Build Lighting only. It looks like rebuilding the lighting on it fixed it.