After turning on hardware ray tracing, the material on some static meshes is not rendered.
In particular, the meshes made of glass materials were expressed as gray blocks.
Hi there @JuneHyeokKim, hope you’re well!
This topic has been moved from International to Rendering.
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Thanks and happy developing!
If you have a post process volume in your scene, I would start by checking the translucency and reflections settings. There should be an option to switch between raster and raytraced.