Unusual grid-like artifact appearing in render [UE5-01]

Hi everyone,
Happy to be working on my first visual using UE5 official! Im on a fast-turnaround job, so might not get the answer in time and right now working and patching up in after effects as needed.

I have a simple scene with some sculptures, and basic lights. The lights are animated to strobe on and off.

Everything looks great in the viewport, however when I am rendering I am getting these strange grid-like artifacts appearing and not sure why. Any advice is appreciated, even if late, as I have been through many many render settings and it still remains.

It seems to be in the transition between lights on and off.

Project render settings are -

AntiAliasing - TSR
Virtual Shadow Maps Off
Detail tracing
All Lumens On
(can respond with any other questions about my set up )



03

Thank you for any advice, am eager to learn why this is happening as have been getting great results with UE5 so far.

1 Like

Did you figure this out ?