The parts of a surface which are clipped by one or more clipping planes are rendered without colors. So the volumes which are calculated and shown in a table can not be assigned to the labels.
This problem should be solved after using the new "image rendering mode" property which refactor the "use color" property.
FIX: With setting the "Image Rendering.Mode" property to mode LOOKUPTABLE_LEVELWINDOW_COLOR the clipped images are rendered with the given lookup table again and the labels are colorized.
[dad07a]: Merge branch 'bug-14853-ClippedLabelsWithImageRenderingMode'
2013-03-27 16:30:35 Jasmin Metzger [f992cf]
Setting the new image rendering mode property for the clipped image to mode "lookuptable_levelwindow_color". Now the lables get their color back.