Cutlist not recognising bodies correctly.

Does anyone know why when inserting a multibody part (including sheet metal and structural members) into a new part ‘insert part’. Structural members are not recognised correctly? They are put in a folder and none of the cutlist properties are brought across from the parent part. If I uncheck to bring in ‘sheet metal properties’ I get structural member cutlist properties (bodies still show in folders, not with regular icon) but I don’t get the sheet metal properties. Its like insert part will only recongise one or the other? Is there a way to resolve this with a setting in options? 

In both examples below the structual member showing correclty has been created in the new part.