I have a dwg file with an OLE with Source Application: Imagen de Microsoft Photo Edito. I assume that it a bitmap with colors beyond 256. If I plot with monochrome.ctb everything comes out block and with except OLE cones out in color.
If I plot with monochrome.stb everything comes out block and with except OLE cones out in color. If I plot with no plotstyles a lot of things come out in color. I have set OLEQUALITY to 0 still color I have tried PDF to DWG.pc3 PDF Factory.