Can I read the xdata of property sets of dwg blocks?

Hi. I'm reading dwg files with the civil 3D reader. I need to use the attributes in the propertysets. this works perfectly with exposing 'autocad_xrecord_datalist' in the reader for all geometry types, but not for the blocks. the property set attributes from the block don't seem to be present on the 'autocad_insert'.

I tried exposing fme_attrib_info but they are also not there. any ideas? or is this just not possible on blocks ?

i added a screenshot of the pset in the dwg