Unable to pull Attribute

[mlj001]

Hi,
The library is excellent for parsing DXF file. Its failing for this one case, where it is not able to pull the Attributes for a Sensor on Anchor layer. It just comes null.

String AnchorsLayerID = "Anchors";
DXFLayer anchors = doc.getDXFLayer(AnchorsLayerID);
//this gives 1 insert
List anchorInserts = anchors
.getDXFEntities(DXFConstants.ENTITY_TYPE_INSERT);
//This gives null
List anchorAttributes = anchors
.getDXFEntities(DXFConstants.ENTITY_TYPE_ATTRIB);

Any help or direction will be highly appreciated.

Here is the sample DXF i am working on.
http://www.filedropper.com/sensoronanchorlayer

Thanks
Manish