This error typically appears when launching Lumion and prevents the software from starting. It relates to DirectX 9 (d3d9) and how Lumion initializes your graphics card.
Restart after completion.
: Force the dedicated GPU in Windows Graphics Settings or the NVIDIA/AMD Control Panel Resolution Mismatch lumion failed to create dummy d3d9
Close these applications completely (right-click their system tray icons and select Exit). Then try launching Lumion. If it works, either uninstall the conflicting software or configure it to ignore Lumion. This error typically appears when launching Lumion and