Since Unreal Engine 5.3 allows to use of Lumen Reflection without using Lumen GI, I was very happy to jump in and try it out. But i have been facing an issue which i was not able to find a solution. Lumen Reflection starts to create these very strong Lens flares and multi-color flickering when there is glass material.
I experienced something like that before, is there any chance you’re using convolution bloom? Disabling that for me cleared the issue.
Thanks for the reply Jblackwell. I checked it and Convolution Bloom is already off.
I see, good to know. Out of curiosity, what does the path-tracing scene look like?
Path tracing results are great. No problems faced
That is super strange then, truly. If you click on the material, what does it say?
I did once have this absolutely bonkers error with lumen: VRAM would overflow and scene textures would corrupt into these super bright color patterns, and lumen would propagate that lighting into the scene, so my level would become an unwanted discotheque. Check if any of your textures have strange corruption artifacts, and check the surface cache if the areas emitting the strange highlights have proper surface cache coverage.