This bug has to do with the vtk widgets that are placed into the scene that you normally use to do things like move a clipping plane or place a line segment or whatnot that the filters use. VTK’s interaction widgets are not hooked up correctly yet in many cases in the VTK/Renderering/RayTracing code path yet unfortunately and that causes bugs like this one.
You might try disabling the widgets in the properties tab. For instance the clip and slice filters have a “Show Plane” button on them. Note that there is a related bug where you may have to turn off the visibility before turning on ray tracing.
@utkarsh.ayachit - this is an example of what we were talking about the other day.