Because DirectX 12 introduces features like explicit multi-threading and low-level memory management, no emulation is perfect—many DX12-exclusive effects may be missing or broken.
If you are trying to "force" a game to run using dxcpl.exe by editing the Feature Level to 12: dxcpl directx 12 emulator work
You will see a window titled “DirectX Control Panel.” dxcpl directx 12 emulator work