Because in Unreal Engine 5, the VSM and Nanite functions require DX12 and SM6, but some graphics cards do not support SM6. Modify RHI to Vulkan or DX12 according to your situation, rather than defaulting back to the DX11 SM5 environment.
If you have any ideas for solving it, please share. Thanks very much.
Hey there @LaoytPS! Welcome to the community! It’s recommended to have a launcher or settings prompt before fully launching games that support both DX11/SM5 and DX12/SM6 and Vulkan. I know for editor usage I use the Command Line Arguments below.
I really appreciate your help，It is a significant help. 
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