VRay 2: Black objects in viewports

When opening my scenes with VRay 2 installed all objects turn completely black in all viewports. After switching the configure>Lighting and Shadows>Illuminate scene with>Default Lights and then back to Scene Lights it works but then when activating different viewports all objects turn black again.

A known problem with a solution?

Do you have any VRayLight’s in the scene? You can try turning off the “Enable viewport shading” option for the lights.

Best regarsd,
Vlado

Hit CTRL+L few times see if that make it easier…