Change Pick-off mirror from 134 to red!
P120FB08: The Stop structure is the dark green. The yellow in the upper left is part of the Optics Housing. The Red is the basic structure of the Pick-off Mirror. The Blue may be the edge of the mirrored surface which has specifically been changed to magenta and yellow 3D surfaces, but there is nothing blue near the mirror itself. the yellow streak could be the edge of the pickoff mirror support or the yellow facet on the Pickoff mirror. Change the yellow facet to green. Change Pick-off support from 54 to white. The blue may be a leak from the mirror shaft. Change it from blue to orange (30) indicates it is not a leak to the shaft.