I have a friend i am trying to set a map for, He has an Elite 5.

My map has isobaths and custom Polygons, I also have a satellite map loaded on the same card. The issue i have is the custom Polygons not displaying.

when the satellite map displays the custom Polygons disappear when the unit is set on shaded relief. when on 2D the sat map is hidden and the custom Polygons appear.

Has anyone come across this?

I suspect this is an issue with transparency on the Elite, which is not supported. I am not certain whether the Elite simply does not support polygons over raster, or whether it renders any polygon with a transparency < 255 as fully transparent. Maybe someone who knows can chime in here?

Thanks Matt, it definitely processes the map different than the HDS.