Suggested diagnostic commands and checks (Windows)
He restarted the system to clear any frozen background display tasks. lumion failed to create dummy d3d9
Lumion relies on Microsoft Direct3D structures to establish its secondary rendering pipelines. If your local DirectX registry is broken, you must manually rewrite it. lumion failed to create dummy d3d9
Vital Windows system files required for 3D rendering are corrupt or missing. lumion failed to create dummy d3d9
An outdated operating system can cause API communication failures. Press to open Settings. Go to Update & Security (or Windows Update ). Click Check for updates .