I have D-rod's and lots of them, but I was also experimenting with the Woo-woo and noticed its alchemical make up was almost exact same as my 0% D-rod I was messing with. Appears the Woo-woo no longer sees Iron or Copper but just water. The alchemical make up of my woo woo and d-rod are so close there is no way they should not see the same nodes.
Did something change and the wiki is no longer correct with Woo-woo finding iron or copper?