This post is about notes #883103 and #883098. There are bunkers in the positions of the notes, but they are not represented. Some places that have no icon are rendered as a dot, but in this case, bunkers are not represented at all. Is this normal?
There are many things that are in the map database and not in, for example, the standard Mapnik layer.
Incidentally, name=Bunker is almost certainly wrong. It probably should have no name tag at all. This is especially true as there seems to be more than one with the same name.
On the other hand, there probably should be a building tag,although I’m not sure that buildings mapped as nodes are rendered in the standard layer.