1) Select File/Open. Select the file "Draw_w_cut.tcw" and open it in Redsdk mode.
2) Right click in drawing area and launch Draft Redsdk Render from the pop up. It works fine.
3) Right click in drawing area and launch Quality and Advanced Redsdk render one by one from the pop up.
There is Cutting Plane only. Rest of the drawing disappears.
Currently the cutting plane functionality is fully working only in RedSDK Draft mode. In other RedSDK modes and in GDI Wireframe only the cutting plane graphic can be shown, but the real cutting is absent.