Hi! I was using the nDisplay template from unreal with no other modification than turning off screen trace in the postprocess. Bloom, vignette, motion blur are all at 0 and exposure is set to manual. That’s why it’s a bit confusing for me. With more testing, Lumen is working well in more complex scenes, seams are easier to be spotted with the mesh and material is simple. If it’s just several white cubes in the scene, then the seams will be more visible, especially in shadowed and reflective areas.