You’re surely facing rendering and you can check out these possible cause below and adjust it
Examine your hardware and verify that your computer hardware satisfies Redshift’s VRAM requirements.
Verify your materials and lighting: Lighting and material problems can result in unusual artefacts. By eliminating extraneous items and elements, you can make your scene simpler.
Verify your rendering options: Incorrect rendering settings might occasionally result in rendering artifacts.
Upgrade your graphics drivers because old drivers can interfere with Redshift’s rendering. Make sure your graphics card is running on the most recent drivers.
Contact Redshift customer service number: If none of the methods above work
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