Hello there @MahouSenseii!
From your provided data, this looks like a potential software/drivers issue. Let’s try some methods for resolution:
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Please update your OS to the latest version, and your nVIDIA drivers, make sure you are picking the “Clean Installation” option, as well as going for the “Developer” drivers, as these have more stable settings for engine work.
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To rule out hardware issues, in Unreal Engine, adjust your values for engine scalabillty, to ensure your equipment is not being exerted.
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Test disabling Hardware Raytracing from the engine
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Please make sure that no RTSS or overlocking are enabled for your video card while working on the engine.
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Uncheck all SM5 in the project settings (Project Settings → Platforms → Windows).
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Disable motion blur in postprocessing settings.
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Remove and reinstall any mesh packs recently added to your UE.
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Additionally, there are two settings to test in nVidia control panel: Go to Settings, and under Features → Overlay, disable the “Game filters and Photo Mode” option. After that, click on “Manage 3D Settings” in the settings menu on the left, go to Monitor Technology and select “Fixed Rate”. With these changes applied, please restart UE5.
