Thanks to all users that pointed and helped us to solve this. Undet4SketchUp V2.0 had some issues with AMD, NVIDIA Quadro series and integrated video cards on SU 2017. In some cases the point cloud was not visible in others Undet asked to update your video card drivers. We fixed this in the new version V2.1. Find more details on each of the video card.
Chartered Surveyor and one of the directors of Maltby Land Surveys Ltd. Andrew Maltby presents his overview of UNDET Toolbox V2.1 the latest software release that is helping smooth workflow from Point Cloud to Vector Drawing.