CPU:11900k
GPU:4080s 16g
RAM:64g
image res：6000 3000
UE5.4 MRQ
seems just reflections were wrone,when resolution over 4000 4000 the problem will show. what cause this problem，how can i fix it in higher resolution.
seems just reflections were wrone,when resolution over 4000 4000 the problem will show. what cause this problem，how can i fix it in higher resolution.
This is a Lumen bug with high res rendering that will be fixed in 5.6. You can try and tile your renders. Other than that I don’t have a great solution unfortunately 
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Thanks，I switch my project to ue5.5, and it works,problem gone.
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