Sonivox Orchestral Companion Issue

Hi,

Is anyone able to run any of the Sonivox Orchestral Companion VIs (strings, brass, winds) on Cubase Pro 10.5.20/Win10 Pro ver 1909?

On my system all three are block-listed. If I re-enable them, everything on the screen immediately shrinks as if the resolution was changed to the highest setting. The VIs produce sounds for a short time but then lock-up requiring the use of the Task Manager to shut Cubase down.

Thanks.