CartoDB - random points being added to map

Question

I'm working on a tool that allows users to draw geometries on a Leaflet map, which are then sent to CartoDB. However, I've noticed an odd behavior... after a polygon has been added, a varying number of seemingly random points get added to the map as well.

For example, I drew a rough polygon of Manhattan, but here's what the map displays...

What strikes me as particularly odd is that, if I remove the polygon CartoCSS, the points remain... some of them can be clicked on and the little info window that pops up correspond to the ID of the polygon, but others are unclickable.

For reference, here is the data from the_geom column for the Manhattan polygon...

{"type":"Polygon",
 "coordinates":
               [
                [
                 [-74.00802612,40.75037809]
                 [-74.01626587,40.70250471],
                 [-73.9956665,40.70979201],
                 [-73.9805603,40.71499674],
                 [-73.97232056,40.74517613],
                 [-73.93112183,40.79821703],
                 [-73.9352417,40.8335541],
                 [-73.91052246,40.87302619],
                 [-73.92837524,40.87614141],
                 [-74.00802612,40.75037809]
                ]
               ]
}

And I checked these... not one of them corresponds to these mystery points.

Does anyone know why this is happening and what I can do about it?

Answer 1

Well, I'm not sure of the source of these mystic points, but I can at least hide them by removing marker styles from the CartoCSS. I was reluctant to do that at first, because I wanted my map to display point, line, and polygon types, and I was concerned that I wouldn't be able to display legit points without getting these suckers in the way. However, I consulted with someone who's been close with the CartoDB folks for a long time, and he advised that I simply store different geometry types in different layers and style accordingly.