无法将地理图形插入到弹性搜索中

我正试图将数据从sql转移到弹性搜索。每次尝试添加多边形时，我都会遇到一个例外。

我使用WktReader阅读WKT，并将其添加到JeoJson类中。该类包含类型（多边形）和坐标

坐标构建（c#）:

{ [ [ [ x,y ], [ x,y ], [ x,y ], [ x,y ], [ x,y ] ] ] }

弹性搜索中的几何映射：

"GEOMETRIES" : {
    "type" : "nested",
    "properties" : {
        "AREA" : { "type" : "double" },
        "CENTROID" : {
            "type" : "geo_point",
            "geohash" : true,
            "geohash_preflix" : true
        },
        "KEY" : {
            "type" : "string",
            "index" : "not_analyzed"
        },
        "SHAPE" : {
            "type" : "geo_shape"
        }
    }
}

有两个例外：

1

MapperParsingException[failed to parse [GEOMETRIES.SHAPE]]; nested: IllegalArgumentException[Invalid number of points in LinearRing (found 3 - must be 0 or >= 4)];

2

MapperParsingException[failed to parse [GEOMETRIES.SHAPE]]; nested: InvalidShapeException[provided shape has duplicate consecutive coordinates at: (number, number, NaN)];