You might need a Global Shader Cache PC D3D SM4 Bin file if:
Sometimes, an overzealous antivirus program can quarantine game files it incorrectly flags as suspicious. Temporarily disable your antivirus, then try verifying the game files again (Step 1). If this solves the issue, be sure to add your entire game installation folder as an exclusion in your antivirus settings.
The globalshadercache-pcd3d_sm4.bin file is a pre-compiled shader cache used primarily by the Unreal Engine. A library of graphics instructions. pcd3d: Personal Computer Direct3D. sm4: Shader Model 4.0.
Perform a clean installation of the latest driver and restart your PC. 3. Force DirectX 11 or DirectX 12 Mode