Test the game again. If fixed, slowly reapply overclock but reduce memory clock first — shaders are sensitive to VRAM stability.

Download and run the from Microsoft. It will add missing d3dx9_*.dll to d3dcompiler_47.dll files.

Leave a comment below. And remember: in graphics programming, every error has a cause — even the unnamed ones.

Simply updating graphics drivers through standard installers often leaves behind corrupted configuration files that trigger shader initialization issues. A completely clean re-installation is the most reliable way to clear out persistent rendering errors.