They removed 'anytime' access to the F lounges for WP"s. Which basically means you need to be flying Qantas, Jetstar or any other OneWorld airline for F lounge access as a QFWP. Before the change, WP's used to be able to access the F lounge even if they were flying eg Air NZ. Now, they can still use a Qantas lounge before the AirNZ flight, but must use the Business lounge, not the F lounge. More info about that change here:
http://www.frequentflyer.com.au/com...t-flyer/no-anytime-access-platinum-11190.html
Other OneWorld Emeralds were never allowed access to the F lounge when not flying OneWorld, so weren't affected by this change.