Poroggo Madames broken?

In the March 27, 2013 update of last year the drop rates for certain salvage items were supposedly increased. I have been hunting the NM Poroggo Madames in Zhayolm Remnants for some time now and have not seen any drops. Specifically, the 5th floor Poroggo Madame has been killed by me on 18 occasions as thief equipped with max treasure hunter gear, (I began keeping track recently), and has not dropped a single item. I honestly do not mind if the drop rate is really low but I would like to know if the NM's loot table is functioning correctly. I'd hate to be wasting days of my time if the NM is broken.