insertDocument :: caused by :: 16755 Can't extract geo keys from object, malformed geometry?: { _id: ObjectId('546cdf43d4ac140dfe5a2077'), type: "Feature", properties:

, geometry: { type: "MultiPolygon", coordinates: [ [ [ [ -2.309013473108151, 53.48918375753105 ], [ -2.308857419510197, 53.48932362256203 ], [ -2.308146400619123, 53.48996058108416 ], [ -2.307723364124215, 53.49079646139326 ], [ -2.307647118187288, 53.49080393578156 ], [ -2.307155615486123, 53.49083584343507 ], [ -2.306

I've used http://geojsonlint.com/ to validate the geojson and used http://mapshaper.org/ to check for intersections (it says there are none).

Is this a bug or is there something wrong with my JSON?