Right-click the Lumion icon and select "Run as Administrator" to ensure it has the necessary permissions. DirectX Update: Ensure your DirectX End-User Runtimes are up to date.
Alex clicked "OK." The program vanished. He tried again. The same error appeared. Panic, cold and sharp, washed over him. His heavy-duty workstation—the beast with the high-end graphics card—was refusing to cooperate at the worst possible moment. lumion failed to create dummy d3d9
Lumion 12 and 13 are more sensitive to D3D9 errors than Lumion 10 or 11. If your project allows, try an older version. Right-click the Lumion icon and select "Run as
He double-clicked the icon again. A white box appeared, stark and mocking against his desktop: cold and sharp
Standard driver updates sometimes leave old files behind, which can cause conflicts.