How does Lumen read objects that are in a blueprint?

Hi y’all,

I am currently working with USD Stage Actors that load an entire scene into the engine as one Blueprint. I’ve started to notice that the reflections in my scene were looking really inaccurate, and the Indirect Lighting Intensity on point lights aren’t affecting the scene at all. I tried putting a group of spheres in a blueprint to see if they would reflect in a chrome ball mesh, and they weren’t showing. However, those same spheres not in a blueprint show up completely fine.

My question is does Lumen work with objects that are grouped in a blueprint, or do they get compressed differently than if they were all placed in the scene normally.

Thanks!